131,900
131,900 is a composite number, even.
131,900 (one hundred thirty-one thousand nine hundred) is an even 6-digit number. It is a composite number with 18 divisors, and factors as 2² × 5² × 1,319. Its proper divisors sum to 154,540, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x2033C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 14
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 9,131
- Recamán's sequence
- a(228,572) = 131,900
- Square (n²)
- 17,397,610,000
- Cube (n³)
- 2,294,744,759,000,000
- Divisor count
- 18
- σ(n) — sum of divisors
- 286,440
- φ(n) — Euler's totient
- 52,720
- Sum of prime factors
- 1,333
Primality
Prime factorization: 2 2 × 5 2 × 1319
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,900 = [363; (5, 1, 1, 5, 3, 1, 3, 3, 2, 1, 2, 1, 2, 1, 11, 1, 1, 2, 1, 1, 1, 6, 1, 1, …)]
Period length 44 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand nine hundred
- Ordinal
- 131900th
- Binary
- 100000001100111100
- Octal
- 401474
- Hexadecimal
- 0x2033C
- Base64
- AgM8
- One's complement
- 4,294,835,395 (32-bit)
- Scientific notation
- 1.319 × 10⁵
- As a duration
- 131,900 s = 1 day, 12 hours, 38 minutes, 20 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢
- Greek (Milesian)
- ͵ρλαϡʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋯·𝋠
- Chinese
- 一十三萬一千九百
- Chinese (financial)
- 壹拾參萬壹仟玖佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131900, here are decompositions:
- 7 + 131893 = 131900
- 61 + 131839 = 131900
- 103 + 131797 = 131900
- 151 + 131749 = 131900
- 157 + 131743 = 131900
- 193 + 131707 = 131900
- 199 + 131701 = 131900
- 229 + 131671 = 131900
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8C BC (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.3.60.
- Address
- 0.2.3.60
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.3.60
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 131,900 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 131900 first appears in π at position 107,310 of the decimal expansion (the 107,310ordinal-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.