131,938
131,938 is a composite number, even.
131,938 (one hundred thirty-one thousand nine hundred thirty-eight) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 41 × 1,609. Written other ways, in hexadecimal, 0x20362.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 25
- Digit product
- 648
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 839,131
- Recamán's sequence
- a(228,496) = 131,938
- Square (n²)
- 17,407,635,844
- Cube (n³)
- 2,296,728,657,985,672
- Divisor count
- 8
- σ(n) — sum of divisors
- 202,860
- φ(n) — Euler's totient
- 64,320
- Sum of prime factors
- 1,652
Primality
Prime factorization: 2 × 41 × 1609
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,938 = [363; (4, 3, 2, 1, 2, 1, 10, 1, 79, 1, 4, 10, 1, 4, 5, 1, 9, 8, 1, 6, 1, 1, 10, 2, …)]
Representations
- In words
- one hundred thirty-one thousand nine hundred thirty-eight
- Ordinal
- 131938th
- Binary
- 100000001101100010
- Octal
- 401542
- Hexadecimal
- 0x20362
- Base64
- AgNi
- One's complement
- 4,294,835,357 (32-bit)
- Scientific notation
- 1.31938 × 10⁵
- As a duration
- 131,938 s = 1 day, 12 hours, 38 minutes, 58 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλαϡληʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋰·𝋲
- Chinese
- 一十三萬一千九百三十八
- Chinese (financial)
- 壹拾參萬壹仟玖佰參拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131938, here are decompositions:
- 5 + 131933 = 131938
- 11 + 131927 = 131938
- 29 + 131909 = 131938
- 47 + 131891 = 131938
- 89 + 131849 = 131938
- 101 + 131837 = 131938
- 167 + 131771 = 131938
- 179 + 131759 = 131938
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8D A2 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.3.98.
- Address
- 0.2.3.98
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.3.98
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 131,938 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 131938 first appears in π at position 178,738 of the decimal expansion (the 178,738ordinal-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.