130,730
130,730 is a composite number, even.
130,730 (one hundred thirty thousand seven hundred thirty) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 5 × 17 × 769. Written other ways, in hexadecimal, 0x1FEAA.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 14
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 37,031
- Square (n²)
- 17,090,332,900
- Cube (n³)
- 2,234,219,220,017,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 249,480
- φ(n) — Euler's totient
- 49,152
- Sum of prime factors
- 793
Primality
Prime factorization: 2 × 5 × 17 × 769
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√130,730 = [361; (1, 1, 3, 3, 1, 1, 722)]
Period length 7 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty thousand seven hundred thirty
- Ordinal
- 130730th
- Binary
- 11111111010101010
- Octal
- 377252
- Hexadecimal
- 0x1FEAA
- Base64
- Af6q
- One's complement
- 4,294,836,565 (32-bit)
- Scientific notation
- 1.3073 × 10⁵
- As a duration
- 130,730 s = 1 day, 12 hours, 18 minutes, 50 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλψλʹ
- Mayan (base 20)
- 𝋰·𝋦·𝋰·𝋪
- Chinese
- 一十三萬零七百三十
- Chinese (financial)
- 壹拾參萬零柒佰參拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 130730, here are decompositions:
- 31 + 130699 = 130730
- 37 + 130693 = 130730
- 43 + 130687 = 130730
- 73 + 130657 = 130730
- 79 + 130651 = 130730
- 97 + 130633 = 130730
- 109 + 130621 = 130730
- 151 + 130579 = 130730
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.254.170.
- Address
- 0.1.254.170
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.254.170
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 130,730 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 130730 first appears in π at position 67,644 of the decimal expansion (the 67,644ordinal-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.