30,742
30,742 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 24,703
- Recamán's sequence
- a(32,179) = 30,742
- Square (n²)
- 945,070,564
- Cube (n³)
- 29,053,359,278,488
- Divisor count
- 8
- σ(n) — sum of divisors
- 48,600
- φ(n) — Euler's totient
- 14,544
- Sum of prime factors
- 830
Primality
Prime factorization: 2 × 19 × 809
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- thirty thousand seven hundred forty-two
- Ordinal
- 30742nd
- Binary
- 111100000010110
- Octal
- 74026
- Hexadecimal
- 0x7816
- Base64
- eBY=
- One's complement
- 34,793 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵λψμβʹ
- Mayan (base 20)
- 𝋣·𝋰·𝋱·𝋢
- Chinese
- 三萬零七百四十二
- Chinese (financial)
- 參萬零柒佰肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 30,742 = 2
- e — Euler's number (e)
- Digit 30,742 = 9
- φ — Golden ratio (φ)
- Digit 30,742 = 8
- √2 — Pythagoras's (√2)
- Digit 30,742 = 6
- ln 2 — Natural log of 2
- Digit 30,742 = 1
- γ — Euler-Mascheroni (γ)
- Digit 30,742 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 30742, here are decompositions:
- 29 + 30713 = 30742
- 53 + 30689 = 30742
- 71 + 30671 = 30742
- 149 + 30593 = 30742
- 233 + 30509 = 30742
- 251 + 30491 = 30742
- 293 + 30449 = 30742
- 311 + 30431 = 30742
Showing the first eight; more decompositions exist.
UTF-8 encoding: E7 A0 96 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.120.22.
- Address
- 0.0.120.22
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.120.22
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 30742 first appears in π at position 269,746 of the decimal expansion (the 269,746ordinal-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.