# 202 (number)

From HandWiki

__: Natural number__

**Short description**
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---|---|---|---|---|

Cardinal | two hundred two | |||

Ordinal | 202nd (two hundred second) | |||

Factorization | 2 × 101 | |||

Divisors | 1, 2, 101, 202 | |||

Greek numeral | ΣΒ´ | |||

Roman numeral | CCII | |||

Binary | 11001010_{2} | |||

Ternary | 21111_{3} | |||

Quaternary | 3022_{4} | |||

Quinary | 1302_{5} | |||

Senary | 534_{6} | |||

Octal | 312_{8} | |||

Duodecimal | 14A_{12} | |||

Hexadecimal | CA_{16} | |||

Vigesimal | A2_{20} | |||

Base 36 | 5M_{36} |

**202** (**two hundred [and] two**) is the natural number following 201 and preceding 203.

## In mathematics

202 is a Smith number, meaning that its digit sum and the sum of digits of its prime factors are equal.^{[1]} It is also a strobogrammatic number, meaning that when shown on a seven-segment display, turning the display upside-down shows the same number.^{[2]}

There are exactly 202 partitions of 32 (a power of two) into smaller powers of two.^{[3]} There are also 202 distinct (non-congruent) polygons that can be formed by connecting all eight vertices of a regular octagon into a cycle,^{[4]} and 202 distinct (non-isomorphic) directed graphs on four unlabeled vertices, not having any isolated vertices.^{[5]}

## See also

- Area code 202, the area code assigned to Washington D.C.
- HTTP status code 202 meaning the request was accepted but has not yet been fulfilled
- List of highways numbered 202
- The Peugeot 202 automobile
- Potassium sorbate, a preservative whose E number is 202

## References

- ↑ Sloane, N. J. A., ed. "Sequence A006753 (Smith (or joke) numbers)". OEIS Foundation. https://oeis.org/A006753.
- ↑ Sloane, N. J. A., ed. "Sequence A018846 (Strobogrammatic numbers)". OEIS Foundation. https://oeis.org/A018846.
- ↑ Sloane, N. J. A., ed. "Sequence A002577 (Number of partitions of 2^n into powers of 2)". OEIS Foundation. https://oeis.org/A002577.
- ↑ Sloane, N. J. A., ed. "Sequence A000940 (Number of n-gons with n vertices)". OEIS Foundation. https://oeis.org/A000940.
- ↑ Sloane, N. J. A., ed. "Sequence A053598 (Number of n-node unlabeled digraphs without isolated nodes)". OEIS Foundation. https://oeis.org/A053598.

Original source: https://en.wikipedia.org/wiki/202 (number).
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