42,620
42,620 is a composite number, even.
42,620 (forty-two thousand six hundred twenty) is an even 5-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 2,131. Its proper divisors sum to 46,924, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xA67C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 14
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 2,624
- Recamán's sequence
- a(73,352) = 42,620
- Square (n²)
- 1,816,464,400
- Cube (n³)
- 77,417,712,728,000
- Divisor count
- 12
- σ(n) — sum of divisors
- 89,544
- φ(n) — Euler's totient
- 17,040
- Sum of prime factors
- 2,140
Primality
Prime factorization: 2 2 × 5 × 2131
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√42,620 = [206; (2, 4, 7, 6, 1, 1, 1, 2, 2, 1, 1, 2, 5, 2, 3, 82, 3, 2, 5, 2, 1, 1, 2, 2, …)]
Period length 32 — the block in parentheses repeats forever.
Representations
- In words
- forty-two thousand six hundred twenty
- Ordinal
- 42620th
- Binary
- 1010011001111100
- Octal
- 123174
- Hexadecimal
- 0xA67C
- Base64
- pnw=
- One's complement
- 22,915 (16-bit)
- Scientific notation
- 4.262 × 10⁴
- As a duration
- 42,620 s = 11 hours, 50 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵μβχκʹ
- Mayan (base 20)
- 𝋥·𝋦·𝋫·𝋠
- Chinese
- 四萬二千六百二十
- Chinese (financial)
- 肆萬貳仟陸佰貳拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,620 = 0
- e — Euler's number (e)
- Digit 42,620 = 0
- φ — Golden ratio (φ)
- Digit 42,620 = 0
- √2 — Pythagoras's (√2)
- Digit 42,620 = 3
- ln 2 — Natural log of 2
- Digit 42,620 = 2
- γ — Euler-Mascheroni (γ)
- Digit 42,620 = 3
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42620, here are decompositions:
- 31 + 42589 = 42620
- 43 + 42577 = 42620
- 157 + 42463 = 42620
- 163 + 42457 = 42620
- 211 + 42409 = 42620
- 223 + 42397 = 42620
- 229 + 42391 = 42620
- 241 + 42379 = 42620
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 99 BC (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.166.124.
- Address
- 0.0.166.124
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.166.124
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42620 first appears in π at position 113,968 of the decimal expansion (the 113,968ordinal-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.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.