131,738
131,738 is a composite number, even.
131,738 (one hundred thirty-one thousand seven hundred thirty-eight) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 199 × 331. Written other ways, in hexadecimal, 0x2029A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 504
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 837,131
- Recamán's sequence
- a(228,896) = 131,738
- Square (n²)
- 17,354,900,644
- Cube (n³)
- 2,286,299,901,039,272
- Divisor count
- 8
- σ(n) — sum of divisors
- 199,200
- φ(n) — Euler's totient
- 65,340
- Sum of prime factors
- 532
Primality
Prime factorization: 2 × 199 × 331
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,738 = [362; (1, 22, 2, 2, 1, 1, 4, 1, 2, 1, 1, 27, 2, 1, 9, 3, 1, 1, 1, 11, 1, 7, 4, 4, …)]
Representations
- In words
- one hundred thirty-one thousand seven hundred thirty-eight
- Ordinal
- 131738th
- Binary
- 100000001010011010
- Octal
- 401232
- Hexadecimal
- 0x2029A
- Base64
- AgKa
- One's complement
- 4,294,835,557 (32-bit)
- Scientific notation
- 1.31738 × 10⁵
- As a duration
- 131,738 s = 1 day, 12 hours, 35 minutes, 38 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλαψληʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋦·𝋲
- Chinese
- 一十三萬一千七百三十八
- Chinese (financial)
- 壹拾參萬壹仟柒佰參拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131738, here are decompositions:
- 7 + 131731 = 131738
- 31 + 131707 = 131738
- 37 + 131701 = 131738
- 67 + 131671 = 131738
- 97 + 131641 = 131738
- 127 + 131611 = 131738
- 157 + 131581 = 131738
- 241 + 131497 = 131738
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8A 9A (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.2.154.
- Address
- 0.2.2.154
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.2.154
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 131,738 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 131738 first appears in π at position 995,130 of the decimal expansion (the 995,130ordinal-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.