13,428
13,428 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 18
- Digit product
- 192
- Digital root
- 9
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 82,431
- Recamán's sequence
- a(47,419) = 13,428
- Square (n²)
- 180,311,184
- Cube (n³)
- 2,421,218,578,752
- Divisor count
- 18
- σ(n) — sum of divisors
- 34,034
- φ(n) — Euler's totient
- 4,464
- Sum of prime factors
- 383
Primality
Prime factorization: 2 2 × 3 2 × 373
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- thirteen thousand four hundred twenty-eight
- Ordinal
- 13428th
- Binary
- 11010001110100
- Octal
- 32164
- Hexadecimal
- 0x3474
- Base64
- NHQ=
- One's complement
- 52,107 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιγυκηʹ
- Mayan (base 20)
- 𝋡·𝋭·𝋫·𝋨
- Chinese
- 一萬三千四百二十八
- Chinese (financial)
- 壹萬參仟肆佰貳拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,428 = 7
- e — Euler's number (e)
- Digit 13,428 = 2
- φ — Golden ratio (φ)
- Digit 13,428 = 3
- √2 — Pythagoras's (√2)
- Digit 13,428 = 0
- ln 2 — Natural log of 2
- Digit 13,428 = 5
- γ — Euler-Mascheroni (γ)
- Digit 13,428 = 4
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13428, here are decompositions:
- 7 + 13421 = 13428
- 11 + 13417 = 13428
- 17 + 13411 = 13428
- 29 + 13399 = 13428
- 31 + 13397 = 13428
- 47 + 13381 = 13428
- 61 + 13367 = 13428
- 89 + 13339 = 13428
Showing the first eight; more decompositions exist.
UTF-8 encoding: E3 91 B4 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.52.116.
- Address
- 0.0.52.116
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.52.116
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 13428 first appears in π at position 41,975 of the decimal expansion (the 41,975ordinal-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.