130,815
130,815 is a composite number, odd.
130,815 (one hundred thirty thousand eight hundred fifteen) is an odd 6-digit number. It is a composite number with 40 divisors, and factors as 3⁴ × 5 × 17 × 19. Written other ways, in hexadecimal, 0x1FEFF.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 518,031
- Square (n²)
- 17,112,564,225
- Cube (n³)
- 2,238,580,089,093,375
- Divisor count
- 40
- σ(n) — sum of divisors
- 261,360
- φ(n) — Euler's totient
- 62,208
- Sum of prime factors
- 53
Primality
Prime factorization: 3 4 × 5 × 17 × 19
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√130,815 = [361; (1, 2, 6, 4, 8, 5, 1, 5, 1, 79, 1, 1, 11, 1, 3, 8, 3, 1, 11, 1, 1, 79, 1, 5, …)]
Period length 32 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty thousand eight hundred fifteen
- Ordinal
- 130815th
- Binary
- 11111111011111111
- Octal
- 377377
- Hexadecimal
- 0x1FEFF
- Base64
- Af7/
- One's complement
- 4,294,836,480 (32-bit)
- Scientific notation
- 1.30815 × 10⁵
- As a duration
- 130,815 s = 1 day, 12 hours, 20 minutes, 15 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋 𒌋𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλωιεʹ
- Mayan (base 20)
- 𝋰·𝋧·𝋠·𝋯
- Chinese
- 一十三萬零八百一十五
- Chinese (financial)
- 壹拾參萬零捌佰壹拾伍
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.1.254.255.
- Address
- 0.1.254.255
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.254.255
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 130,815 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 130815 first appears in π at position 505,077 of the decimal expansion (the 505,077ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.