131,470
131,470 is a composite number, even.
131,470 (one hundred thirty-one thousand four hundred seventy) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 5 × 13,147. Written other ways, in hexadecimal, 0x2018E.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 74,131
- Recamán's sequence
- a(229,432) = 131,470
- Square (n²)
- 17,284,360,900
- Cube (n³)
- 2,272,374,927,523,000
- Divisor count
- 8
- σ(n) — sum of divisors
- 236,664
- φ(n) — Euler's totient
- 52,584
- Sum of prime factors
- 13,154
Primality
Prime factorization: 2 × 5 × 13147
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,470 = [362; (1, 1, 2, 2, 1, 10, 3, 1, 1, 4, 2, 3, 6, 2, 1, 3, 18, 3, 10, 5, 2, 12, 1, 37, …)]
Representations
- In words
- one hundred thirty-one thousand four hundred seventy
- Ordinal
- 131470th
- Binary
- 100000000110001110
- Octal
- 400616
- Hexadecimal
- 0x2018E
- Base64
- AgGO
- One's complement
- 4,294,835,825 (32-bit)
- Scientific notation
- 1.3147 × 10⁵
- As a duration
- 131,470 s = 1 day, 12 hours, 31 minutes, 10 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹 𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλαυοʹ
- Mayan (base 20)
- 𝋰·𝋨·𝋭·𝋪
- Chinese
- 一十三萬一千四百七十
- Chinese (financial)
- 壹拾參萬壹仟肆佰柒拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131470, here are decompositions:
- 23 + 131447 = 131470
- 29 + 131441 = 131470
- 89 + 131381 = 131470
- 107 + 131363 = 131470
- 113 + 131357 = 131470
- 149 + 131321 = 131470
- 167 + 131303 = 131470
- 173 + 131297 = 131470
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 86 8E (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.142.
- Address
- 0.2.1.142
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.1.142
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 131,470 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 131470 first appears in π at position 5,742 of the decimal expansion (the 5,742ordinal-suffix:nd 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.