130,445
130,445 is a composite number, odd.
130,445 (one hundred thirty thousand four hundred forty-five) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 5 × 7 × 3,727. Written other ways, in hexadecimal, 0x1FD8D.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 544,031
- Square (n²)
- 17,015,898,025
- Cube (n³)
- 2,219,638,817,871,125
- Divisor count
- 8
- σ(n) — sum of divisors
- 178,944
- φ(n) — Euler's totient
- 89,424
- Sum of prime factors
- 3,739
Primality
Prime factorization: 5 × 7 × 3727
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√130,445 = [361; (5, 1, 4, 1, 2, 7, 1, 1, 2, 2, 6, 1, 2, 1, 3, 4, 144, 4, 3, 1, 2, 1, 6, 2, …)]
Period length 34 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty thousand four hundred forty-five
- Ordinal
- 130445th
- Binary
- 11111110110001101
- Octal
- 376615
- Hexadecimal
- 0x1FD8D
- Base64
- Af2N
- One's complement
- 4,294,836,850 (32-bit)
- Scientific notation
- 1.30445 × 10⁵
- As a duration
- 130,445 s = 1 day, 12 hours, 14 minutes, 5 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλυμεʹ
- Mayan (base 20)
- 𝋰·𝋦·𝋢·𝋥
- Chinese
- 一十三萬零四百四十五
- Chinese (financial)
- 壹拾參萬零肆佰肆拾伍
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.1.253.141.
- Address
- 0.1.253.141
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.253.141
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 130,445 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.