4,742
4,742 is a composite number, even.
4,742 (four thousand seven hundred forty-two) is an even 4-digit number. It is a composite number with 4 divisors, and factors as 2 × 2,371. Written other ways, in hexadecimal, 0x1286.
Interestingness
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 17
- Digit product
- 224
- Digital root
- 8
- Palindrome
- No
- Bit width
- 13 bits
- Reversed
- 2,474
- Recamán's sequence
- a(13,671) = 4,742
- Square (n²)
- 22,486,564
- Cube (n³)
- 106,631,286,488
- Divisor count
- 4
- σ(n) — sum of divisors
- 7,116
- φ(n) — Euler's totient
- 2,370
- Sum of prime factors
- 2,373
Primality
Prime factorization: 2 × 2371
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√4,742 = [68; (1, 6, 3, 1, 9, 1, 5, 12, 2, 1, 5, 1, 1, 2, 2, 4, 1, 7, 3, 2, 68, 2, 3, 7, …)]
Period length 42 — the block in parentheses repeats forever.
Representations
- In words
- four thousand seven hundred forty-two
- Ordinal
- 4742nd
- Binary
- 1001010000110
- Octal
- 11206
- Hexadecimal
- 0x1286
- Base64
- EoY=
- One's complement
- 60,793 (16-bit)
- Scientific notation
- 4.742 × 10³
- As a duration
- 4,742 s = 1 hour, 19 minutes, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵δψμβʹ
- Mayan (base 20)
- 𝋫·𝋱·𝋢
- Chinese
- 四千七百四十二
- Chinese (financial)
- 肆仟柒佰肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 4,742 = 7
- e — Euler's number (e)
- Digit 4,742 = 0
- φ — Golden ratio (φ)
- Digit 4,742 = 6
- √2 — Pythagoras's (√2)
- Digit 4,742 = 4
- ln 2 — Natural log of 2
- Digit 4,742 = 4
- γ — Euler-Mascheroni (γ)
- Digit 4,742 = 5
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 4742, here are decompositions:
- 13 + 4729 = 4742
- 19 + 4723 = 4742
- 79 + 4663 = 4742
- 103 + 4639 = 4742
- 139 + 4603 = 4742
- 151 + 4591 = 4742
- 181 + 4561 = 4742
- 193 + 4549 = 4742
Showing the first eight; more decompositions exist.
UTF-8 encoding: E1 8A 86 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.18.134.
- Address
- 0.0.18.134
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.18.134
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 4,742 Hz is closest to:
- Concert pitch (A4 = 440 Hz): D8 (4698.6 Hz, +16¢)
- Scientific pitch (C4 = 256 Hz): D♯8 (4871 Hz, -46¢ — about midway to D8)
- Baroque pitch (A4 = 415 Hz): D♯8 (4695.2 Hz, +17¢)
The digit sequence 4742 first appears in π at position 36,075 of the decimal expansion (the 36,075ordinal-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.