131,555
131,555 is a composite number, odd.
131,555 (one hundred thirty-one thousand five hundred fifty-five) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 5 × 83 × 317. Written other ways, in hexadecimal, 0x201E3.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 375
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 555,131
- Recamán's sequence
- a(229,262) = 131,555
- Square (n²)
- 17,306,718,025
- Cube (n³)
- 2,276,785,289,778,875
- Divisor count
- 8
- σ(n) — sum of divisors
- 160,272
- φ(n) — Euler's totient
- 103,648
- Sum of prime factors
- 405
Primality
Prime factorization: 5 × 83 × 317
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,555 = [362; (1, 2, 2, 1, 1, 3, 1, 11, 9, 10, 3, 1, 20, 1, 1, 2, 1, 1, 1, 3, 1, 6, 1, 13, …)]
Period length 50 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand five hundred fifty-five
- Ordinal
- 131555th
- Binary
- 100000000111100011
- Octal
- 400743
- Hexadecimal
- 0x201E3
- Base64
- AgHj
- One's complement
- 4,294,835,740 (32-bit)
- Scientific notation
- 1.31555 × 10⁵
- As a duration
- 131,555 s = 1 day, 12 hours, 32 minutes, 35 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλαφνεʹ
- Mayan (base 20)
- 𝋰·𝋨·𝋱·𝋯
- Chinese
- 一十三萬一千五百五十五
- Chinese (financial)
- 壹拾參萬壹仟伍佰伍拾伍
Also seen as
UTF-8 encoding: F0 A0 87 A3 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.227.
- Address
- 0.2.1.227
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.1.227
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 131,555 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 131555 first appears in π at position 997,070 of the decimal expansion (the 997,070ordinal-suffix:th digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.