5,420
5,420 is a composite number, even.
5,420 (five thousand four hundred twenty) is an even 4-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 271. Its proper divisors sum to 6,004, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x152C.
Interestingness
Properties
Primality
Prime factorization: 2 2 × 5 × 271
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√5,420 = [73; (1, 1, 1, 1, 1, 2, 1, 28, 1, 2, 1, 1, 1, 1, 1, 146)]
Period length 16 — the block in parentheses repeats forever.
Representations
- In words
- five thousand four hundred twenty
- Ordinal
- 5420th
- Binary
- 1010100101100
- Octal
- 12454
- Hexadecimal
- 0x152C
- Base64
- FSw=
- One's complement
- 60,115 (16-bit)
- Scientific notation
- 5.42 × 10³
- As a duration
- 5,420 s = 1 hour, 30 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒌋𒌋𒌋 𒌋𒌋
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ευκʹ
- Mayan (base 20)
- 𝋭·𝋫·𝋠
- Chinese
- 五千四百二十
- Chinese (financial)
- 伍仟肆佰貳拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 5,420 = 6
- e — Euler's number (e)
- Digit 5,420 = 9
- φ — Golden ratio (φ)
- Digit 5,420 = 4
- √2 — Pythagoras's (√2)
- Digit 5,420 = 5
- ln 2 — Natural log of 2
- Digit 5,420 = 7
- γ — Euler-Mascheroni (γ)
- Digit 5,420 = 3
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 5420, here are decompositions:
- 3 + 5417 = 5420
- 7 + 5413 = 5420
- 13 + 5407 = 5420
- 73 + 5347 = 5420
- 97 + 5323 = 5420
- 139 + 5281 = 5420
- 193 + 5227 = 5420
- 211 + 5209 = 5420
Showing the first eight; more decompositions exist.
UTF-8 encoding: E1 94 AC (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.21.44.
- Address
- 0.0.21.44
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.21.44
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 5,420 Hz is closest to:
- Concert pitch (A4 = 440 Hz): E8 (5274 Hz, +47¢ — about midway to F8)
- Scientific pitch (C4 = 256 Hz): F8 (5467.5 Hz, -15¢)
- Baroque pitch (A4 = 415 Hz): F8 (5270.2 Hz, +49¢ — about midway to F♯8)
The digit sequence 5420 first appears in π at position 700 of the decimal expansion (the 700ordinal-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.