131,980
131,980 is a composite number, even.
131,980 (one hundred thirty-one thousand nine hundred eighty) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 6,599. Its proper divisors sum to 145,220, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x2038C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 89,131
- Recamán's sequence
- a(228,412) = 131,980
- Square (n²)
- 17,418,720,400
- Cube (n³)
- 2,298,922,718,392,000
- Divisor count
- 12
- σ(n) — sum of divisors
- 277,200
- φ(n) — Euler's totient
- 52,784
- Sum of prime factors
- 6,608
Primality
Prime factorization: 2 2 × 5 × 6599
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,980 = [363; (3, 2, 3, 1, 4, 1, 1, 3, 6, 3, 1, 3, 1, 3, 18, 2, 1, 2, 1, 2, 4, 4, 1, 12, …)]
Period length 52 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand nine hundred eighty
- Ordinal
- 131980th
- Binary
- 100000001110001100
- Octal
- 401614
- Hexadecimal
- 0x2038C
- Base64
- AgOM
- One's complement
- 4,294,835,315 (32-bit)
- Scientific notation
- 1.3198 × 10⁵
- As a duration
- 131,980 s = 1 day, 12 hours, 39 minutes, 40 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλαϡπʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋳·𝋠
- Chinese
- 一十三萬一千九百八十
- Chinese (financial)
- 壹拾參萬壹仟玖佰捌拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131980, here are decompositions:
- 11 + 131969 = 131980
- 41 + 131939 = 131980
- 47 + 131933 = 131980
- 53 + 131927 = 131980
- 71 + 131909 = 131980
- 89 + 131891 = 131980
- 131 + 131849 = 131980
- 197 + 131783 = 131980
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8E 8C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.3.140.
- Address
- 0.2.3.140
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.3.140
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 131,980 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 131980 first appears in π at position 768,264 of the decimal expansion (the 768,264ordinal-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.