131,801
131,801 is a composite number, odd.
131,801 (one hundred thirty-one thousand eight hundred one) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 17 × 7,753. Written other ways, in hexadecimal, 0x202D9.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 14
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 108,131
- Recamán's sequence
- a(228,770) = 131,801
- Square (n²)
- 17,371,503,601
- Cube (n³)
- 2,289,581,546,115,401
- Divisor count
- 4
- σ(n) — sum of divisors
- 139,572
- φ(n) — Euler's totient
- 124,032
- Sum of prime factors
- 7,770
Primality
Prime factorization: 17 × 7753
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,801 = [363; (22, 1, 2, 4, 1, 2, 42, 2, 1, 4, 2, 1, 22, 726)]
Period length 14 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand eight hundred one
- Ordinal
- 131801st
- Binary
- 100000001011011001
- Octal
- 401331
- Hexadecimal
- 0x202D9
- Base64
- AgLZ
- One's complement
- 4,294,835,494 (32-bit)
- Scientific notation
- 1.31801 × 10⁵
- As a duration
- 131,801 s = 1 day, 12 hours, 36 minutes, 41 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺
- Greek (Milesian)
- ͵ρλαωαʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋪·𝋡
- Chinese
- 一十三萬一千八百零一
- Chinese (financial)
- 壹拾參萬壹仟捌佰零壹
Also seen as
UTF-8 encoding: F0 A0 8B 99 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.2.217.
- Address
- 0.2.2.217
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.2.217
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 131,801 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.