4,920
4,920 is a composite number, even.
4,920 (four thousand nine hundred twenty) is an even 4-digit number. It is a composite number with 32 divisors, and factors as 2³ × 3 × 5 × 41. Its proper divisors sum to 10,200, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1338.
Interestingness
Properties
Primality
Prime factorization: 2 3 × 3 × 5 × 41
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√4,920 = [70; (7, 140)]
Period length 2 — the block in parentheses repeats forever.
Representations
- In words
- four thousand nine hundred twenty
- Ordinal
- 4920th
- Binary
- 1001100111000
- Octal
- 11470
- Hexadecimal
- 0x1338
- Base64
- Ezg=
- One's complement
- 60,615 (16-bit)
- Scientific notation
- 4.92 × 10³
- As a duration
- 4,920 s = 1 hour, 22 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒌋𒌋𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵δϡκʹ
- Mayan (base 20)
- 𝋬·𝋦·𝋠
- Chinese
- 四千九百二十
- Chinese (financial)
- 肆仟玖佰貳拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 4,920 = 3
- e — Euler's number (e)
- Digit 4,920 = 2
- φ — Golden ratio (φ)
- Digit 4,920 = 9
- √2 — Pythagoras's (√2)
- Digit 4,920 = 2
- ln 2 — Natural log of 2
- Digit 4,920 = 8
- γ — Euler-Mascheroni (γ)
- Digit 4,920 = 4
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 4920, here are decompositions:
- 11 + 4909 = 4920
- 17 + 4903 = 4920
- 31 + 4889 = 4920
- 43 + 4877 = 4920
- 59 + 4861 = 4920
- 89 + 4831 = 4920
- 103 + 4817 = 4920
- 107 + 4813 = 4920
Showing the first eight; more decompositions exist.
UTF-8 encoding: E1 8C B8 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.19.56.
- Address
- 0.0.19.56
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.19.56
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 4,920 Hz is closest to:
- Concert pitch (A4 = 440 Hz): D♯8 (4978 Hz, -20¢)
- Scientific pitch (C4 = 256 Hz): D♯8 (4871 Hz, +17¢)
- Baroque pitch (A4 = 415 Hz): E8 (4974.4 Hz, -19¢)
The digit sequence 4920 first appears in π at position 3,116 of the decimal expansion (the 3,116ordinal-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°.