131,472
131,472 is a composite number, even.
131,472 (one hundred thirty-one thousand four hundred seventy-two) is an even 6-digit number. It is a composite number with 60 divisors, and factors as 2⁴ × 3² × 11 × 83. Its proper divisors sum to 274,752, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20190.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 168
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 274,131
- Recamán's sequence
- a(229,428) = 131,472
- Square (n²)
- 17,284,886,784
- Cube (n³)
- 2,272,478,635,266,048
- Divisor count
- 60
- σ(n) — sum of divisors
- 406,224
- φ(n) — Euler's totient
- 39,360
- Sum of prime factors
- 108
Primality
Prime factorization: 2 4 × 3 2 × 11 × 83
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,472 = [362; (1, 1, 2, 3, 1, 8, 5, 1, 1, 4, 2, 1, 4, 2, 1, 1, 1, 1, 1, 2, 4, 1, 2, 4, …)]
Period length 34 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand four hundred seventy-two
- Ordinal
- 131472nd
- Binary
- 100000000110010000
- Octal
- 400620
- Hexadecimal
- 0x20190
- Base64
- AgGQ
- One's complement
- 4,294,835,823 (32-bit)
- Scientific notation
- 1.31472 × 10⁵
- As a duration
- 131,472 s = 1 day, 12 hours, 31 minutes, 12 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹 𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλαυοβʹ
- Mayan (base 20)
- 𝋰·𝋨·𝋭·𝋬
- Chinese
- 一十三萬一千四百七十二
- Chinese (financial)
- 壹拾參萬壹仟肆佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131472, here are decompositions:
- 23 + 131449 = 131472
- 31 + 131441 = 131472
- 41 + 131431 = 131472
- 59 + 131413 = 131472
- 101 + 131371 = 131472
- 109 + 131363 = 131472
- 151 + 131321 = 131472
- 179 + 131293 = 131472
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 86 90 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.144.
- Address
- 0.2.1.144
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.1.144
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 131,472 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.