131,816
131,816 is a composite number, even.
131,816 (one hundred thirty-one thousand eight hundred sixteen) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2³ × 16,477. Written other ways, in hexadecimal, 0x202E8.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 144
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 618,131
- Recamán's sequence
- a(228,740) = 131,816
- Square (n²)
- 17,375,457,856
- Cube (n³)
- 2,290,363,352,746,496
- Divisor count
- 8
- σ(n) — sum of divisors
- 247,170
- φ(n) — Euler's totient
- 65,904
- Sum of prime factors
- 16,483
Primality
Prime factorization: 2 3 × 16477
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,816 = [363; (15, 2, 4, 3, 12, 1, 8, 3, 1, 3, 181, 3, 1, 3, 8, 1, 12, 3, 4, 2, 15, 726)]
Period length 22 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand eight hundred sixteen
- Ordinal
- 131816th
- Binary
- 100000001011101000
- Octal
- 401350
- Hexadecimal
- 0x202E8
- Base64
- AgLo
- One's complement
- 4,294,835,479 (32-bit)
- Scientific notation
- 1.31816 × 10⁵
- As a duration
- 131,816 s = 1 day, 12 hours, 36 minutes, 56 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλαωιϛʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋪·𝋰
- Chinese
- 一十三萬一千八百一十六
- Chinese (financial)
- 壹拾參萬壹仟捌佰壹拾陸
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131816, here are decompositions:
- 19 + 131797 = 131816
- 37 + 131779 = 131816
- 67 + 131749 = 131816
- 73 + 131743 = 131816
- 103 + 131713 = 131816
- 109 + 131707 = 131816
- 199 + 131617 = 131816
- 337 + 131479 = 131816
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8B A8 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.2.232.
- Address
- 0.2.2.232
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.2.232
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 131,816 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 131816 first appears in π at position 405,232 of the decimal expansion (the 405,232ordinal-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.