21,344
21,344 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 14
- Digit product
- 96
- Digital root
- 5
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 44,312
- Recamán's sequence
- a(41,151) = 21,344
- Square (n²)
- 455,566,336
- Cube (n³)
- 9,723,607,875,584
- Divisor count
- 24
- σ(n) — sum of divisors
- 45,360
- φ(n) — Euler's totient
- 9,856
- Sum of prime factors
- 62
Primality
Prime factorization: 2 5 × 23 × 29
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- twenty-one thousand three hundred forty-four
- Ordinal
- 21344th
- Binary
- 101001101100000
- Octal
- 51540
- Hexadecimal
- 0x5360
- Base64
- U2A=
- One's complement
- 44,191 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵κατμδʹ
- Mayan (base 20)
- 𝋢·𝋭·𝋧·𝋤
- Chinese
- 二萬一千三百四十四
- Chinese (financial)
- 貳萬壹仟參佰肆拾肆
Digit at this position in famous constants
- π — Pi (π)
- Digit 21,344 = 4
- e — Euler's number (e)
- Digit 21,344 = 5
- φ — Golden ratio (φ)
- Digit 21,344 = 7
- √2 — Pythagoras's (√2)
- Digit 21,344 = 7
- ln 2 — Natural log of 2
- Digit 21,344 = 6
- γ — Euler-Mascheroni (γ)
- Digit 21,344 = 1
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 21344, here are decompositions:
- 3 + 21341 = 21344
- 31 + 21313 = 21344
- 61 + 21283 = 21344
- 67 + 21277 = 21344
- 97 + 21247 = 21344
- 151 + 21193 = 21344
- 157 + 21187 = 21344
- 181 + 21163 = 21344
Showing the first eight; more decompositions exist.
UTF-8 encoding: E5 8D A0 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.83.96.
- Address
- 0.0.83.96
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.83.96
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 21344 first appears in π at position 5,672 of the decimal expansion (the 5,672ordinal-suffix:nd 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.