42,972
42,972 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 24
- Digit product
- 1,008
- Digital root
- 6
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 27,924
- Recamán's sequence
- a(72,648) = 42,972
- Square (n²)
- 1,846,592,784
- Cube (n³)
- 79,351,785,114,048
- Divisor count
- 12
- σ(n) — sum of divisors
- 100,296
- φ(n) — Euler's totient
- 14,320
- Sum of prime factors
- 3,588
Primality
Prime factorization: 2 2 × 3 × 3581
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand nine hundred seventy-two
- Ordinal
- 42972nd
- Binary
- 1010011111011100
- Octal
- 123734
- Hexadecimal
- 0xA7DC
- Base64
- p9w=
- One's complement
- 22,563 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵μβϡοβʹ
- Mayan (base 20)
- 𝋥·𝋧·𝋨·𝋬
- Chinese
- 四萬二千九百七十二
- Chinese (financial)
- 肆萬貳仟玖佰柒拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,972 = 2
- e — Euler's number (e)
- Digit 42,972 = 2
- φ — Golden ratio (φ)
- Digit 42,972 = 3
- √2 — Pythagoras's (√2)
- Digit 42,972 = 7
- ln 2 — Natural log of 2
- Digit 42,972 = 3
- γ — Euler-Mascheroni (γ)
- Digit 42,972 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42972, here are decompositions:
- 5 + 42967 = 42972
- 11 + 42961 = 42972
- 19 + 42953 = 42972
- 29 + 42943 = 42972
- 43 + 42929 = 42972
- 71 + 42901 = 42972
- 73 + 42899 = 42972
- 109 + 42863 = 42972
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 9F 9C (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.167.220.
- Address
- 0.0.167.220
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.167.220
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42972 first appears in π at position 6,165 of the decimal expansion (the 6,165ordinal-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.