80,020
80,020 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 10
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 2,008
- Recamán's sequence
- a(120,067) = 80,020
- Square (n²)
- 6,403,200,400
- Cube (n³)
- 512,384,096,008,000
- Divisor count
- 12
- σ(n) — sum of divisors
- 168,084
- φ(n) — Euler's totient
- 32,000
- Sum of prime factors
- 4,010
Primality
Prime factorization: 2 2 × 5 × 4001
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- eighty thousand twenty
- Ordinal
- 80020th
- Binary
- 10011100010010100
- Octal
- 234224
- Hexadecimal
- 0x13894
- Base64
- ATiU
- One's complement
- 4,294,887,275 (32-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹 𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓎆𓎆
- Greek (Milesian)
- ͵πκʹ
- Mayan (base 20)
- 𝋪·𝋠·𝋡·𝋠
- Chinese
- 八萬零二十
- Chinese (financial)
- 捌萬零貳拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 80,020 = 1
- e — Euler's number (e)
- Digit 80,020 = 3
- φ — Golden ratio (φ)
- Digit 80,020 = 1
- √2 — Pythagoras's (√2)
- Digit 80,020 = 7
- ln 2 — Natural log of 2
- Digit 80,020 = 9
- γ — Euler-Mascheroni (γ)
- Digit 80,020 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 80020, here are decompositions:
- 23 + 79997 = 80020
- 41 + 79979 = 80020
- 47 + 79973 = 80020
- 53 + 79967 = 80020
- 113 + 79907 = 80020
- 131 + 79889 = 80020
- 173 + 79847 = 80020
- 179 + 79841 = 80020
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 93 A2 94 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.56.148.
- Address
- 0.1.56.148
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.56.148
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 80020 first appears in π at position 44,604 of the decimal expansion (the 44,604ordinal-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.