131,890
131,890 is a composite number, even.
131,890 (one hundred thirty-one thousand eight hundred ninety) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2 × 5 × 11² × 109. Written other ways, in hexadecimal, 0x20332.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 98,131
- Recamán's sequence
- a(228,592) = 131,890
- Square (n²)
- 17,394,972,100
- Cube (n³)
- 2,294,222,870,269,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 263,340
- φ(n) — Euler's totient
- 47,520
- Sum of prime factors
- 138
Primality
Prime factorization: 2 × 5 × 11 2 × 109
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,890 = [363; (6, 726)]
Period length 2 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand eight hundred ninety
- Ordinal
- 131890th
- Binary
- 100000001100110010
- Octal
- 401462
- Hexadecimal
- 0x20332
- Base64
- AgMy
- One's complement
- 4,294,835,405 (32-bit)
- Scientific notation
- 1.3189 × 10⁵
- As a duration
- 131,890 s = 1 day, 12 hours, 38 minutes, 10 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλαωϟʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋮·𝋪
- Chinese
- 一十三萬一千八百九十
- Chinese (financial)
- 壹拾參萬壹仟捌佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131890, here are decompositions:
- 29 + 131861 = 131890
- 41 + 131849 = 131890
- 53 + 131837 = 131890
- 107 + 131783 = 131890
- 113 + 131777 = 131890
- 131 + 131759 = 131890
- 179 + 131711 = 131890
- 251 + 131639 = 131890
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8C B2 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.3.50.
- Address
- 0.2.3.50
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.3.50
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 131,890 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 131890 first appears in π at position 418,540 of the decimal expansion (the 418,540ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.