66,742
66,742 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 25
- Digit product
- 2,016
- Digital root
- 7
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 24,766
- Recamán's sequence
- a(284,096) = 66,742
- Square (n²)
- 4,454,494,564
- Cube (n³)
- 297,301,876,190,488
- Divisor count
- 16
- σ(n) — sum of divisors
- 114,912
- φ(n) — Euler's totient
- 28,800
- Sum of prime factors
- 183
Primality
Prime factorization: 2 × 13 × 17 × 151
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- sixty-six thousand seven hundred forty-two
- Ordinal
- 66742nd
- Binary
- 10000010010110110
- Octal
- 202266
- Hexadecimal
- 0x104B6
- Base64
- AQS2
- One's complement
- 4,294,900,553 (32-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ξϛψμβʹ
- Mayan (base 20)
- 𝋨·𝋦·𝋱·𝋢
- Chinese
- 六萬六千七百四十二
- Chinese (financial)
- 陸萬陸仟柒佰肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 66,742 = 1
- e — Euler's number (e)
- Digit 66,742 = 5
- φ — Golden ratio (φ)
- Digit 66,742 = 8
- √2 — Pythagoras's (√2)
- Digit 66,742 = 1
- ln 2 — Natural log of 2
- Digit 66,742 = 4
- γ — Euler-Mascheroni (γ)
- Digit 66,742 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 66742, here are decompositions:
- 3 + 66739 = 66742
- 29 + 66713 = 66742
- 41 + 66701 = 66742
- 59 + 66683 = 66742
- 89 + 66653 = 66742
- 113 + 66629 = 66742
- 149 + 66593 = 66742
- 173 + 66569 = 66742
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 90 92 B6 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.4.182.
- Address
- 0.1.4.182
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.4.182
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 66742 first appears in π at position 66,532 of the decimal expansion (the 66,532ordinal-suffix:nd 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.