9,942
9,942 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 24
- Digit product
- 648
- Digital root
- 6
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 2,499
- Recamán's sequence
- a(4,515) = 9,942
- Square (n²)
- 98,843,364
- Cube (n³)
- 982,700,724,888
- Divisor count
- 8
- σ(n) — sum of divisors
- 19,896
- φ(n) — Euler's totient
- 3,312
- Sum of prime factors
- 1,662
Primality
Prime factorization: 2 × 3 × 1657
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- nine thousand nine hundred forty-two
- Ordinal
- 9942nd
- Binary
- 10011011010110
- Octal
- 23326
- Hexadecimal
- 0x26D6
- Base64
- JtY=
- One's complement
- 55,593 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵θϡμβʹ
- Mayan (base 20)
- 𝋡·𝋤·𝋱·𝋢
- Chinese
- 九千九百四十二
- Chinese (financial)
- 玖仟玖佰肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 9,942 = 2
- e — Euler's number (e)
- Digit 9,942 = 0
- φ — Golden ratio (φ)
- Digit 9,942 = 8
- √2 — Pythagoras's (√2)
- Digit 9,942 = 4
- ln 2 — Natural log of 2
- Digit 9,942 = 1
- γ — Euler-Mascheroni (γ)
- Digit 9,942 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 9942, here are decompositions:
- 11 + 9931 = 9942
- 13 + 9929 = 9942
- 19 + 9923 = 9942
- 41 + 9901 = 9942
- 59 + 9883 = 9942
- 71 + 9871 = 9942
- 83 + 9859 = 9942
- 103 + 9839 = 9942
Showing the first eight; more decompositions exist.
UTF-8 encoding: E2 9B 96 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.38.214.
- Address
- 0.0.38.214
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.38.214
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 9942 first appears in π at position 11,466 of the decimal expansion (the 11,466ordinal-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.