131,318
131,318 is a composite number, even.
131,318 (one hundred thirty-one thousand three hundred eighteen) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 11 × 47 × 127. Written other ways, in hexadecimal, 0x200F6.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 72
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 813,131
- Recamán's sequence
- a(24,391) = 131,318
- Square (n²)
- 17,244,417,124
- Cube (n³)
- 2,264,502,367,889,432
- Divisor count
- 16
- σ(n) — sum of divisors
- 221,184
- φ(n) — Euler's totient
- 57,960
- Sum of prime factors
- 187
Primality
Prime factorization: 2 × 11 × 47 × 127
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,318 = [362; (2, 1, 1, 1, 4, 5, 1, 2, 1, 1, 1, 2, 3, 1, 24, 4, 1, 1, 4, 1, 5, 1, 4, 1, …)]
Period length 46 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand three hundred eighteen
- Ordinal
- 131318th
- Binary
- 100000000011110110
- Octal
- 400366
- Hexadecimal
- 0x200F6
- Base64
- AgD2
- One's complement
- 4,294,835,977 (32-bit)
- Scientific notation
- 1.31318 × 10⁵
- As a duration
- 131,318 s = 1 day, 12 hours, 28 minutes, 38 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλατιηʹ
- Mayan (base 20)
- 𝋰·𝋨·𝋥·𝋲
- Chinese
- 一十三萬一千三百一十八
- Chinese (financial)
- 壹拾參萬壹仟參佰壹拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131318, here are decompositions:
- 7 + 131311 = 131318
- 67 + 131251 = 131318
- 97 + 131221 = 131318
- 277 + 131041 = 131318
- 307 + 131011 = 131318
- 331 + 130987 = 131318
- 337 + 130981 = 131318
- 349 + 130969 = 131318
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 83 B6 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.0.246.
- Address
- 0.2.0.246
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.0.246
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 131,318 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 131318 first appears in π at position 547,972 of the decimal expansion (the 547,972ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.