130,725
130,725 is a composite number, odd.
130,725 (one hundred thirty thousand seven hundred twenty-five) is an odd 6-digit number. It is a composite number with 36 divisors, and factors as 3² × 5² × 7 × 83. Its proper divisors sum to 140,091, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1FEA5.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 527,031
- Square (n²)
- 17,089,025,625
- Cube (n³)
- 2,233,962,874,828,125
- Divisor count
- 36
- σ(n) — sum of divisors
- 270,816
- φ(n) — Euler's totient
- 59,040
- Sum of prime factors
- 106
Primality
Prime factorization: 3 2 × 5 2 × 7 × 83
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√130,725 = [361; (1, 1, 3, 1, 2, 1, 2, 6, 1, 6, 2, 3, 1, 1, 1, 180, 7, 6, 2, 28, 2, 6, 7, 180, …)]
Period length 40 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty thousand seven hundred twenty-five
- Ordinal
- 130725th
- Binary
- 11111111010100101
- Octal
- 377245
- Hexadecimal
- 0x1FEA5
- Base64
- Af6l
- One's complement
- 4,294,836,570 (32-bit)
- Scientific notation
- 1.30725 × 10⁵
- As a duration
- 130,725 s = 1 day, 12 hours, 18 minutes, 45 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλψκεʹ
- Mayan (base 20)
- 𝋰·𝋦·𝋰·𝋥
- Chinese
- 一十三萬零七百二十五
- Chinese (financial)
- 壹拾參萬零柒佰貳拾伍
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.1.254.165.
- Address
- 0.1.254.165
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.254.165
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 130,725 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 130725 first appears in π at position 506,640 of the decimal expansion (the 506,640ordinal-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°.