42,220
42,220 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 10
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 2,224
- Recamán's sequence
- a(151,183) = 42,220
- Square (n²)
- 1,782,528,400
- Cube (n³)
- 75,258,349,048,000
- Divisor count
- 12
- σ(n) — sum of divisors
- 88,704
- φ(n) — Euler's totient
- 16,880
- Sum of prime factors
- 2,120
Primality
Prime factorization: 2 2 × 5 × 2111
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand two hundred twenty
- Ordinal
- 42220th
- Binary
- 1010010011101100
- Octal
- 122354
- Hexadecimal
- 0xA4EC
- Base64
- pOw=
- One's complement
- 23,315 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵μβσκʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋫·𝋠
- Chinese
- 四萬二千二百二十
- Chinese (financial)
- 肆萬貳仟貳佰貳拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,220 = 2
- e — Euler's number (e)
- Digit 42,220 = 6
- φ — Golden ratio (φ)
- Digit 42,220 = 1
- √2 — Pythagoras's (√2)
- Digit 42,220 = 8
- ln 2 — Natural log of 2
- Digit 42,220 = 9
- γ — Euler-Mascheroni (γ)
- Digit 42,220 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42220, here are decompositions:
- 11 + 42209 = 42220
- 23 + 42197 = 42220
- 41 + 42179 = 42220
- 89 + 42131 = 42220
- 131 + 42089 = 42220
- 137 + 42083 = 42220
- 149 + 42071 = 42220
- 197 + 42023 = 42220
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 93 AC (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.236.
- Address
- 0.0.164.236
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.236
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 42220 first appears in π at position 98,134 of the decimal expansion (the 98,134ordinal-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.