130,808
130,808 is a composite number, even.
130,808 (one hundred thirty thousand eight hundred eight) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 83 × 197. Written other ways, in hexadecimal, 0x1FEF8.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 808,031
- Square (n²)
- 17,110,732,864
- Cube (n³)
- 2,238,220,744,474,112
- Divisor count
- 16
- σ(n) — sum of divisors
- 249,480
- φ(n) — Euler's totient
- 64,288
- Sum of prime factors
- 286
Primality
Prime factorization: 2 3 × 83 × 197
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√130,808 = [361; (1, 2, 15, 17, 1, 1, 2, 1, 2, 1, 2, 3, 2, 1, 1, 1, 1, 1, 2, 3, 2, 1, 2, 1, …)]
Period length 32 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty thousand eight hundred eight
- Ordinal
- 130808th
- Binary
- 11111111011111000
- Octal
- 377370
- Hexadecimal
- 0x1FEF8
- Base64
- Af74
- One's complement
- 4,294,836,487 (32-bit)
- Scientific notation
- 1.30808 × 10⁵
- As a duration
- 130,808 s = 1 day, 12 hours, 20 minutes, 8 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλωηʹ
- Mayan (base 20)
- 𝋰·𝋧·𝋠·𝋨
- Chinese
- 一十三萬零八百零八
- Chinese (financial)
- 壹拾參萬零捌佰零捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 130808, here are decompositions:
- 79 + 130729 = 130808
- 109 + 130699 = 130808
- 127 + 130681 = 130808
- 151 + 130657 = 130808
- 157 + 130651 = 130808
- 229 + 130579 = 130808
- 277 + 130531 = 130808
- 331 + 130477 = 130808
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.254.248.
- Address
- 0.1.254.248
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.254.248
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 130,808 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 130808 first appears in π at position 401,880 of the decimal expansion (the 401,880ordinal-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.