6,961
6,961 is a prime, odd.
6,961 (six thousand nine hundred sixty-one) is an odd 4-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x1B31.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 22
- Digit product
- 324
- Digital root
- 4
- Palindrome
- No
- Bit width
- 13 bits
- Reversed
- 1,696
- Flips to (rotate 180°)
- 1,969
- Recamán's sequence
- a(52,957) = 6,961
- Square (n²)
- 48,455,521
- Cube (n³)
- 337,298,881,681
- Divisor count
- 2
- σ(n) — sum of divisors
- 6,962
- φ(n) — Euler's totient
- 6,960
Primality
6,961 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√6,961 = [83; (2, 3, 4, 1, 3, 2, 1, 3, 2, 1, 1, 1, 10, 2, 55, 6, 1, 14, 3, 4, 1, 7, 1, 32, …)]
Representations
- In words
- six thousand nine hundred sixty-one
- Ordinal
- 6961st
- Binary
- 1101100110001
- Octal
- 15461
- Hexadecimal
- 0x1B31
- Base64
- GzE=
- One's complement
- 58,574 (16-bit)
- Scientific notation
- 6.961 × 10³
- As a duration
- 6,961 s = 1 hour, 56 minutes, 1 second
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵ϛϡξαʹ
- Mayan (base 20)
- 𝋱·𝋨·𝋡
- Chinese
- 六千九百六十一
- Chinese (financial)
- 陸仟玖佰陸拾壹
Digit at this position in famous constants
- π — Pi (π)
- Digit 6,961 = 5
- e — Euler's number (e)
- Digit 6,961 = 6
- φ — Golden ratio (φ)
- Digit 6,961 = 7
- √2 — Pythagoras's (√2)
- Digit 6,961 = 6
- ln 2 — Natural log of 2
- Digit 6,961 = 2
- γ — Euler-Mascheroni (γ)
- Digit 6,961 = 2
Also seen as
UTF-8 encoding: E1 AC B1 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.27.49.
- Address
- 0.0.27.49
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.27.49
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 6,961 Hz is closest to:
- Concert pitch (A4 = 440 Hz): A8 (7040 Hz, -20¢)
- Scientific pitch (C4 = 256 Hz): A8 (6888.6 Hz, +18¢)
- Baroque pitch (A4 = 415 Hz): A♯8 (7034.8 Hz, -18¢)
The digit sequence 6961 first appears in π at position 12,131 of the decimal expansion (the 12,131ordinal-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
- Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.