55,640
55,640 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 4,655
- Recamán's sequence
- a(140,275) = 55,640
- Square (n²)
- 3,095,809,600
- Cube (n³)
- 172,250,846,144,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 136,080
- φ(n) — Euler's totient
- 20,352
- Sum of prime factors
- 131
Primality
Prime factorization: 2 3 × 5 × 13 × 107
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- fifty-five thousand six hundred forty
- Ordinal
- 55640th
- Binary
- 1101100101011000
- Octal
- 154530
- Hexadecimal
- 0xD958
- Base64
- 2Vg=
- One's complement
- 9,895 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵νεχμʹ
- Mayan (base 20)
- 𝋦·𝋳·𝋢·𝋠
- Chinese
- 五萬五千六百四十
- Chinese (financial)
- 伍萬伍仟陸佰肆拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 55,640 = 0
- e — Euler's number (e)
- Digit 55,640 = 2
- φ — Golden ratio (φ)
- Digit 55,640 = 5
- √2 — Pythagoras's (√2)
- Digit 55,640 = 7
- ln 2 — Natural log of 2
- Digit 55,640 = 6
- γ — Euler-Mascheroni (γ)
- Digit 55,640 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 55640, here are decompositions:
- 7 + 55633 = 55640
- 19 + 55621 = 55640
- 31 + 55609 = 55640
- 37 + 55603 = 55640
- 61 + 55579 = 55640
- 139 + 55501 = 55640
- 199 + 55441 = 55640
- 229 + 55411 = 55640
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.0.217.88.
- Address
- 0.0.217.88
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.217.88
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 55640 first appears in π at position 9,054 of the decimal expansion (the 9,054ordinal-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.