16,420
16,420 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 2,461
- Recamán's sequence
- a(17,872) = 16,420
- Square (n²)
- 269,616,400
- Cube (n³)
- 4,427,101,288,000
- Divisor count
- 12
- σ(n) — sum of divisors
- 34,524
- φ(n) — Euler's totient
- 6,560
- Sum of prime factors
- 830
Primality
Prime factorization: 2 2 × 5 × 821
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- sixteen thousand four hundred twenty
- Ordinal
- 16420th
- Binary
- 100000000100100
- Octal
- 40044
- Hexadecimal
- 0x4024
- Base64
- QCQ=
- One's complement
- 49,115 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ιϛυκʹ
- Mayan (base 20)
- 𝋢·𝋡·𝋡·𝋠
- Chinese
- 一萬六千四百二十
- Chinese (financial)
- 壹萬陸仟肆佰貳拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 16,420 = 7
- e — Euler's number (e)
- Digit 16,420 = 2
- φ — Golden ratio (φ)
- Digit 16,420 = 2
- √2 — Pythagoras's (√2)
- Digit 16,420 = 9
- ln 2 — Natural log of 2
- Digit 16,420 = 9
- γ — Euler-Mascheroni (γ)
- Digit 16,420 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 16420, here are decompositions:
- 3 + 16417 = 16420
- 59 + 16361 = 16420
- 71 + 16349 = 16420
- 101 + 16319 = 16420
- 167 + 16253 = 16420
- 191 + 16229 = 16420
- 197 + 16223 = 16420
- 227 + 16193 = 16420
Showing the first eight; more decompositions exist.
UTF-8 encoding: E4 80 A4 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.64.36.
- Address
- 0.0.64.36
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.64.36
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 16420 first appears in π at position 992 of the decimal expansion (the 992ordinal-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.