4,680
4,680 is a composite number, even.
4,680 (four thousand six hundred eighty) is an even 4-digit number. It is a composite number with 48 divisors, and factors as 2³ × 3² × 5 × 13. Its proper divisors sum to 11,700, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1248.
Interestingness
Properties
Primality
Prime factorization: 2 3 × 3 2 × 5 × 13
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√4,680 = [68; (2, 2, 3, 2, 2, 136)]
Period length 6 — the block in parentheses repeats forever.
Representations
- In words
- four thousand six hundred eighty
- Ordinal
- 4680th
- Binary
- 1001001001000
- Octal
- 11110
- Hexadecimal
- 0x1248
- Base64
- Ekg=
- One's complement
- 60,855 (16-bit)
- Scientific notation
- 4.68 × 10³
- As a duration
- 4,680 s = 1 hour, 18 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵δχπʹ
- Mayan (base 20)
- 𝋫·𝋮·𝋠
- Chinese
- 四千六百八十
- Chinese (financial)
- 肆仟陸佰捌拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 4,680 = 1
- e — Euler's number (e)
- Digit 4,680 = 7
- φ — Golden ratio (φ)
- Digit 4,680 = 4
- √2 — Pythagoras's (√2)
- Digit 4,680 = 3
- ln 2 — Natural log of 2
- Digit 4,680 = 3
- γ — Euler-Mascheroni (γ)
- Digit 4,680 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 4680, here are decompositions:
- 7 + 4673 = 4680
- 17 + 4663 = 4680
- 23 + 4657 = 4680
- 29 + 4651 = 4680
- 31 + 4649 = 4680
- 37 + 4643 = 4680
- 41 + 4639 = 4680
- 43 + 4637 = 4680
Showing the first eight; more decompositions exist.
UTF-8 encoding: E1 89 88 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.18.72.
- Address
- 0.0.18.72
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.18.72
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 4,680 Hz is closest to:
- Concert pitch (A4 = 440 Hz): D8 (4698.6 Hz, -7¢)
- Scientific pitch (C4 = 256 Hz): D8 (4597.6 Hz, +31¢)
- Baroque pitch (A4 = 415 Hz): D♯8 (4695.2 Hz, -6¢)
The digit sequence 4680 first appears in π at position 2,247 of the decimal expansion (the 2,247ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.