20,993
20,993 is a composite number, odd.
20,993 (twenty thousand nine hundred ninety-three) is an odd 5-digit number. It is a composite number with 4 divisors, and factors as 7 × 2,999. Written other ways, in hexadecimal, 0x5201.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 23
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 39,902
- Recamán's sequence
- a(41,853) = 20,993
- Square (n²)
- 440,706,049
- Cube (n³)
- 9,251,742,086,657
- Divisor count
- 4
- σ(n) — sum of divisors
- 24,000
- φ(n) — Euler's totient
- 17,988
- Sum of prime factors
- 3,006
Primality
Prime factorization: 7 × 2999
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√20,993 = [144; (1, 8, 16, 1, 14, 3, 4, 2, 2, 1, 4, 4, 1, 25, 1, 1, 6, 1, 1, 3, 1, 3, 1, 2, …)]
Representations
- In words
- twenty thousand nine hundred ninety-three
- Ordinal
- 20993rd
- Binary
- 101001000000001
- Octal
- 51001
- Hexadecimal
- 0x5201
- Base64
- UgE=
- One's complement
- 44,542 (16-bit)
- Scientific notation
- 2.0993 × 10⁴
- As a duration
- 20,993 s = 5 hours, 49 minutes, 53 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺
- Greek (Milesian)
- ͵κϡϟγʹ
- Mayan (base 20)
- 𝋢·𝋬·𝋩·𝋭
- Chinese
- 二萬零九百九十三
- Chinese (financial)
- 貳萬零玖佰玖拾參
Digit at this position in famous constants
- π — Pi (π)
- Digit 20,993 = 1
- e — Euler's number (e)
- Digit 20,993 = 3
- φ — Golden ratio (φ)
- Digit 20,993 = 3
- √2 — Pythagoras's (√2)
- Digit 20,993 = 6
- ln 2 — Natural log of 2
- Digit 20,993 = 0
- γ — Euler-Mascheroni (γ)
- Digit 20,993 = 4
Also seen as
UTF-8 encoding: E5 88 81 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.82.1.
- Address
- 0.0.82.1
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.82.1
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 20993 first appears in π at position 71,110 of the decimal expansion (the 71,110ordinal-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.