5,428
5,428 is a composite number, even.
5,428 (five thousand four hundred twenty-eight) is an even 4-digit number. It is a composite number with 12 divisors, and factors as 2² × 23 × 59. Written other ways, in hexadecimal, 0x1534.
Interestingness
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 19
- Digit product
- 320
- Digital root
- 1
- Palindrome
- No
- Bit width
- 13 bits
- Reversed
- 8,245
- Recamán's sequence
- a(4,436) = 5,428
- Square (n²)
- 29,463,184
- Cube (n³)
- 159,926,162,752
- Divisor count
- 12
- σ(n) — sum of divisors
- 10,080
- φ(n) — Euler's totient
- 2,552
- Sum of prime factors
- 86
Primality
Prime factorization: 2 2 × 23 × 59
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√5,428 = [73; (1, 2, 13, 16, 3, 2, 1, 2, 1, 8, 2, 11, 1, 4, 6, 4, 1, 11, 2, 8, 1, 2, 1, 2, …)]
Period length 30 — the block in parentheses repeats forever.
Representations
- In words
- five thousand four hundred twenty-eight
- Ordinal
- 5428th
- Binary
- 1010100110100
- Octal
- 12464
- Hexadecimal
- 0x1534
- Base64
- FTQ=
- One's complement
- 60,107 (16-bit)
- Scientific notation
- 5.428 × 10³
- As a duration
- 5,428 s = 1 hour, 30 minutes, 28 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ευκηʹ
- Mayan (base 20)
- 𝋭·𝋫·𝋨
- Chinese
- 五千四百二十八
- Chinese (financial)
- 伍仟肆佰貳拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 5,428 = 3
- e — Euler's number (e)
- Digit 5,428 = 3
- φ — Golden ratio (φ)
- Digit 5,428 = 3
- √2 — Pythagoras's (√2)
- Digit 5,428 = 8
- ln 2 — Natural log of 2
- Digit 5,428 = 4
- γ — Euler-Mascheroni (γ)
- Digit 5,428 = 2
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 5428, here are decompositions:
- 11 + 5417 = 5428
- 29 + 5399 = 5428
- 41 + 5387 = 5428
- 47 + 5381 = 5428
- 131 + 5297 = 5428
- 149 + 5279 = 5428
- 167 + 5261 = 5428
- 191 + 5237 = 5428
Showing the first eight; more decompositions exist.
UTF-8 encoding: E1 94 B4 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.21.52.
- Address
- 0.0.21.52
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.21.52
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 5,428 Hz is closest to:
- Concert pitch (A4 = 440 Hz): E8 (5274 Hz, +50¢ — about midway to F8)
- Scientific pitch (C4 = 256 Hz): F8 (5467.5 Hz, -13¢)
- Baroque pitch (A4 = 415 Hz): F♯8 (5583.6 Hz, -49¢ — about midway to F8)
The digit sequence 5428 first appears in π at position 2,701 of the decimal expansion (the 2,701ordinal-suffix:st 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.