130,072
130,072 is a composite number, even.
130,072 (one hundred thirty thousand seventy-two) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 71 × 229. Written other ways, in hexadecimal, 0x1FC18.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 270,031
- Recamán's sequence
- a(33,900) = 130,072
- Square (n²)
- 16,918,725,184
- Cube (n³)
- 2,200,652,422,133,248
- Divisor count
- 16
- σ(n) — sum of divisors
- 248,400
- φ(n) — Euler's totient
- 63,840
- Sum of prime factors
- 306
Primality
Prime factorization: 2 3 × 71 × 229
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√130,072 = [360; (1, 1, 1, 8, 1, 4, 1, 2, 3, 1, 1, 2, 3, 79, 1, 5, 1, 2, 4, 5, 2, 1, 3, 3, …)]
Representations
- In words
- one hundred thirty thousand seventy-two
- Ordinal
- 130072nd
- Binary
- 11111110000011000
- Octal
- 376030
- Hexadecimal
- 0x1FC18
- Base64
- AfwY
- One's complement
- 4,294,837,223 (32-bit)
- Scientific notation
- 1.30072 × 10⁵
- As a duration
- 130,072 s = 1 day, 12 hours, 7 minutes, 52 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλοβʹ
- Mayan (base 20)
- 𝋰·𝋥·𝋣·𝋬
- Chinese
- 一十三萬零七十二
- Chinese (financial)
- 壹拾參萬零柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 130072, here are decompositions:
- 3 + 130069 = 130072
- 29 + 130043 = 130072
- 101 + 129971 = 130072
- 113 + 129959 = 130072
- 179 + 129893 = 130072
- 269 + 129803 = 130072
- 353 + 129719 = 130072
- 401 + 129671 = 130072
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.252.24.
- Address
- 0.1.252.24
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.252.24
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 130,072 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 130072 first appears in π at position 597,504 of the decimal expansion (the 597,504ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.