131,984
131,984 is a composite number, even.
131,984 (one hundred thirty-one thousand nine hundred eighty-four) is an even 6-digit number. It is a composite number with 20 divisors, and factors as 2⁴ × 73 × 113. Written other ways, in hexadecimal, 0x20390.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 26
- Digit product
- 864
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 489,131
- Recamán's sequence
- a(228,404) = 131,984
- Square (n²)
- 17,419,776,256
- Cube (n³)
- 2,299,131,749,371,904
- Divisor count
- 20
- σ(n) — sum of divisors
- 261,516
- φ(n) — Euler's totient
- 64,512
- Sum of prime factors
- 194
Primality
Prime factorization: 2 4 × 73 × 113
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,984 = [363; (3, 2, 1, 1, 1, 4, 2, 1, 1, 1, 1, 1, 5, 17, 1, 1, 5, 4, 1, 4, 1, 6, 1, 1, …)]
Representations
- In words
- one hundred thirty-one thousand nine hundred eighty-four
- Ordinal
- 131984th
- Binary
- 100000001110010000
- Octal
- 401620
- Hexadecimal
- 0x20390
- Base64
- AgOQ
- One's complement
- 4,294,835,311 (32-bit)
- Scientific notation
- 1.31984 × 10⁵
- As a duration
- 131,984 s = 1 day, 12 hours, 39 minutes, 44 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλαϡπδʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋳·𝋤
- Chinese
- 一十三萬一千九百八十四
- Chinese (financial)
- 壹拾參萬壹仟玖佰捌拾肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131984, here are decompositions:
- 37 + 131947 = 131984
- 43 + 131941 = 131984
- 241 + 131743 = 131984
- 271 + 131713 = 131984
- 277 + 131707 = 131984
- 283 + 131701 = 131984
- 313 + 131671 = 131984
- 367 + 131617 = 131984
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8E 90 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.3.144.
- Address
- 0.2.3.144
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.3.144
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 131,984 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 131984 first appears in π at position 305,464 of the decimal expansion (the 305,464ordinal-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.