55,220
55,220 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 14
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 2,255
- Recamán's sequence
- a(141,115) = 55,220
- Square (n²)
- 3,049,248,400
- Cube (n³)
- 168,379,496,648,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 127,008
- φ(n) — Euler's totient
- 20,000
- Sum of prime factors
- 271
Primality
Prime factorization: 2 2 × 5 × 11 × 251
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- fifty-five thousand two hundred twenty
- Ordinal
- 55220th
- Binary
- 1101011110110100
- Octal
- 153664
- Hexadecimal
- 0xD7B4
- Base64
- 17Q=
- One's complement
- 10,315 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋 𒌋𒌋
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵νεσκʹ
- Mayan (base 20)
- 𝋦·𝋲·𝋡·𝋠
- Chinese
- 五萬五千二百二十
- Chinese (financial)
- 伍萬伍仟貳佰貳拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 55,220 = 7
- e — Euler's number (e)
- Digit 55,220 = 0
- φ — Golden ratio (φ)
- Digit 55,220 = 4
- √2 — Pythagoras's (√2)
- Digit 55,220 = 2
- ln 2 — Natural log of 2
- Digit 55,220 = 2
- γ — Euler-Mascheroni (γ)
- Digit 55,220 = 4
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 55220, here are decompositions:
- 3 + 55217 = 55220
- 7 + 55213 = 55220
- 13 + 55207 = 55220
- 19 + 55201 = 55220
- 73 + 55147 = 55220
- 103 + 55117 = 55220
- 163 + 55057 = 55220
- 199 + 55021 = 55220
Showing the first eight; more decompositions exist.
UTF-8 encoding: ED 9E B4 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.215.180.
- Address
- 0.0.215.180
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.215.180
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.
Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.
The digit sequence 55220 first appears in π at position 33,190 of the decimal expansion (the 33,190ordinal-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.