16,989
16,989 is a composite number, odd.
16,989 (sixteen thousand nine hundred eighty-nine) is an odd 5-digit number. It is a composite number with 8 divisors, and factors as 3 × 7 × 809. Written other ways, in hexadecimal, 0x425D.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 33
- Digit product
- 3,888
- Digital root
- 6
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 98,961
- Flips to (rotate 180°)
- 68,691
- Recamán's sequence
- a(44,433) = 16,989
- Square (n²)
- 288,626,121
- Cube (n³)
- 4,903,469,169,669
- Divisor count
- 8
- σ(n) — sum of divisors
- 25,920
- φ(n) — Euler's totient
- 9,696
- Sum of prime factors
- 819
Primality
Prime factorization: 3 × 7 × 809
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√16,989 = [130; (2, 1, 12, 2, 1, 2, 1, 1, 1, 1, 1, 36, 1, 1, 1, 1, 1, 2, 1, 2, 12, 1, 2, 260)]
Period length 24 — the block in parentheses repeats forever.
Representations
- In words
- sixteen thousand nine hundred eighty-nine
- Ordinal
- 16989th
- Binary
- 100001001011101
- Octal
- 41135
- Hexadecimal
- 0x425D
- Base64
- Ql0=
- One's complement
- 48,546 (16-bit)
- Scientific notation
- 1.6989 × 10⁴
- As a duration
- 16,989 s = 4 hours, 43 minutes, 9 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιϛϡπθʹ
- Mayan (base 20)
- 𝋢·𝋢·𝋩·𝋩
- Chinese
- 一萬六千九百八十九
- Chinese (financial)
- 壹萬陸仟玖佰捌拾玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 16,989 = 2
- e — Euler's number (e)
- Digit 16,989 = 3
- φ — Golden ratio (φ)
- Digit 16,989 = 2
- √2 — Pythagoras's (√2)
- Digit 16,989 = 8
- ln 2 — Natural log of 2
- Digit 16,989 = 9
- γ — Euler-Mascheroni (γ)
- Digit 16,989 = 7
Also seen as
UTF-8 encoding: E4 89 9D (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.66.93.
- Address
- 0.0.66.93
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.66.93
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 16,989 Hz is closest to:
- Concert pitch (A4 = 440 Hz): C10 (16744 Hz, +25¢)
- Scientific pitch (C4 = 256 Hz): C♯10 (17358.2 Hz, -37¢)
- Baroque pitch (A4 = 415 Hz): C♯10 (16731.8 Hz, +26¢)
The digit sequence 16989 first appears in π at position 47,060 of the decimal expansion (the 47,060ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.