130,472
130,472 is a composite number, even.
130,472 (one hundred thirty thousand four hundred seventy-two) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 47 × 347. Written other ways, in hexadecimal, 0x1FDA8.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 274,031
- Square (n²)
- 17,022,942,784
- Cube (n³)
- 2,221,017,390,914,048
- Divisor count
- 16
- σ(n) — sum of divisors
- 250,560
- φ(n) — Euler's totient
- 63,664
- Sum of prime factors
- 400
Primality
Prime factorization: 2 3 × 47 × 347
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√130,472 = [361; (4, 1, 3, 1, 1, 1, 1, 7, 1, 1, 30, 1, 7, 4, 6, 1, 2, 2, 1, 1, 1, 5, 2, 1, …)]
Period length 50 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty thousand four hundred seventy-two
- Ordinal
- 130472nd
- Binary
- 11111110110101000
- Octal
- 376650
- Hexadecimal
- 0x1FDA8
- Base64
- Af2o
- One's complement
- 4,294,836,823 (32-bit)
- Scientific notation
- 1.30472 × 10⁵
- As a duration
- 130,472 s = 1 day, 12 hours, 14 minutes, 32 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλυοβʹ
- Mayan (base 20)
- 𝋰·𝋦·𝋣·𝋬
- Chinese
- 一十三萬零四百七十二
- Chinese (financial)
- 壹拾參萬零肆佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 130472, here are decompositions:
- 3 + 130469 = 130472
- 61 + 130411 = 130472
- 73 + 130399 = 130472
- 103 + 130369 = 130472
- 109 + 130363 = 130472
- 193 + 130279 = 130472
- 211 + 130261 = 130472
- 271 + 130201 = 130472
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.253.168.
- Address
- 0.1.253.168
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.253.168
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 130,472 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 130472 first appears in π at position 729,049 of the decimal expansion (the 729,049ordinal-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.