28,016
28,016 is a composite number, even.
28,016 (twenty-eight thousand sixteen) is an even 5-digit number. It is a composite number with 20 divisors, and factors as 2⁴ × 17 × 103. Its proper divisors sum to 30,016, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x6D70.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 61,082
- Recamán's sequence
- a(34,399) = 28,016
- Square (n²)
- 784,896,256
- Cube (n³)
- 21,989,653,508,096
- Divisor count
- 20
- σ(n) — sum of divisors
- 58,032
- φ(n) — Euler's totient
- 13,056
- Sum of prime factors
- 128
Primality
Prime factorization: 2 4 × 17 × 103
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√28,016 = [167; (2, 1, 1, 1, 2, 1, 1, 1, 2, 334)]
Period length 10 — the block in parentheses repeats forever.
Representations
- In words
- twenty-eight thousand sixteen
- Ordinal
- 28016th
- Binary
- 110110101110000
- Octal
- 66560
- Hexadecimal
- 0x6D70
- Base64
- bXA=
- One's complement
- 37,519 (16-bit)
- Scientific notation
- 2.8016 × 10⁴
- As a duration
- 28,016 s = 7 hours, 46 minutes, 56 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵κηιϛʹ
- Mayan (base 20)
- 𝋣·𝋪·𝋠·𝋰
- Chinese
- 二萬八千零一十六
- Chinese (financial)
- 貳萬捌仟零壹拾陸
Digit at this position in famous constants
- π — Pi (π)
- Digit 28,016 = 7
- e — Euler's number (e)
- Digit 28,016 = 4
- φ — Golden ratio (φ)
- Digit 28,016 = 4
- √2 — Pythagoras's (√2)
- Digit 28,016 = 5
- ln 2 — Natural log of 2
- Digit 28,016 = 0
- γ — Euler-Mascheroni (γ)
- Digit 28,016 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 28016, here are decompositions:
- 19 + 27997 = 28016
- 73 + 27943 = 28016
- 97 + 27919 = 28016
- 193 + 27823 = 28016
- 199 + 27817 = 28016
- 223 + 27793 = 28016
- 277 + 27739 = 28016
- 283 + 27733 = 28016
Showing the first eight; more decompositions exist.
UTF-8 encoding: E6 B5 B0 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.109.112.
- Address
- 0.0.109.112
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.109.112
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 28016 first appears in π at position 78,591 of the decimal expansion (the 78,591ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.