131,474
131,474 is a composite number, even.
131,474 (one hundred thirty-one thousand four hundred seventy-four) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 7 × 9,391. Written other ways, in hexadecimal, 0x20192.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 336
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 474,131
- Recamán's sequence
- a(229,424) = 131,474
- Square (n²)
- 17,285,412,676
- Cube (n³)
- 2,272,582,346,164,424
- Divisor count
- 8
- σ(n) — sum of divisors
- 225,408
- φ(n) — Euler's totient
- 56,340
- Sum of prime factors
- 9,400
Primality
Prime factorization: 2 × 7 × 9391
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,474 = [362; (1, 1, 2, 5, 1, 2, 3, 1, 2, 1, 1, 1, 1, 13, 1, 8, 4, 31, 3, 2, 20, 1, 8, 1, …)]
Period length 50 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand four hundred seventy-four
- Ordinal
- 131474th
- Binary
- 100000000110010010
- Octal
- 400622
- Hexadecimal
- 0x20192
- Base64
- AgGS
- One's complement
- 4,294,835,821 (32-bit)
- Scientific notation
- 1.31474 × 10⁵
- As a duration
- 131,474 s = 1 day, 12 hours, 31 minutes, 14 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹 𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλαυοδʹ
- Mayan (base 20)
- 𝋰·𝋨·𝋭·𝋮
- Chinese
- 一十三萬一千四百七十四
- Chinese (financial)
- 壹拾參萬壹仟肆佰柒拾肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131474, here are decompositions:
- 37 + 131437 = 131474
- 43 + 131431 = 131474
- 61 + 131413 = 131474
- 103 + 131371 = 131474
- 157 + 131317 = 131474
- 163 + 131311 = 131474
- 181 + 131293 = 131474
- 223 + 131251 = 131474
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 86 92 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.146.
- Address
- 0.2.1.146
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.1.146
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 131,474 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 131474 first appears in π at position 245,406 of the decimal expansion (the 245,406ordinal-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.