131,404
131,404 is a composite number, even.
131,404 (one hundred thirty-one thousand four hundred four) is an even 6-digit number. It is a composite number with 36 divisors, and factors as 2² × 7 × 13 × 19². Its proper divisors sum to 167,300, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x2014C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 404,131
- Recamán's sequence
- a(229,564) = 131,404
- Square (n²)
- 17,267,011,216
- Cube (n³)
- 2,268,954,341,827,264
- Divisor count
- 36
- σ(n) — sum of divisors
- 298,704
- φ(n) — Euler's totient
- 49,248
- Sum of prime factors
- 62
Primality
Prime factorization: 2 2 × 7 × 13 × 19 2
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,404 = [362; (2, 80, 18, 8, 1, 8, 1, 1, 9, 7, 6, 1, 8, 1, 4, 5, 1, 5, 6, 1, 1, 5, 1, 1, …)]
Period length 54 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand four hundred four
- Ordinal
- 131404th
- Binary
- 100000000101001100
- Octal
- 400514
- Hexadecimal
- 0x2014C
- Base64
- AgFM
- One's complement
- 4,294,835,891 (32-bit)
- Scientific notation
- 1.31404 × 10⁵
- As a duration
- 131,404 s = 1 day, 12 hours, 30 minutes, 4 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλαυδʹ
- Mayan (base 20)
- 𝋰·𝋨·𝋪·𝋤
- Chinese
- 一十三萬一千四百零四
- Chinese (financial)
- 壹拾參萬壹仟肆佰零肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131404, here are decompositions:
- 23 + 131381 = 131404
- 41 + 131363 = 131404
- 47 + 131357 = 131404
- 83 + 131321 = 131404
- 101 + 131303 = 131404
- 107 + 131297 = 131404
- 137 + 131267 = 131404
- 173 + 131231 = 131404
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 85 8C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.76.
- Address
- 0.2.1.76
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.1.76
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 131,404 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 131404 first appears in π at position 604,185 of the decimal expansion (the 604,185ordinal-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.