6,987
6,987 is a composite number, odd.
6,987 (six thousand nine hundred eighty-seven) is an odd 4-digit number. It is a composite number with 8 divisors, and factors as 3 × 17 × 137. Written other ways, in hexadecimal, 0x1B4B.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 30
- Digit product
- 3,024
- Digital root
- 3
- Palindrome
- No
- Bit width
- 13 bits
- Reversed
- 7,896
- Recamán's sequence
- a(177,037) = 6,987
- Square (n²)
- 48,818,169
- Cube (n³)
- 341,092,546,803
- Divisor count
- 8
- σ(n) — sum of divisors
- 9,936
- φ(n) — Euler's totient
- 4,352
- Sum of prime factors
- 157
Primality
Prime factorization: 3 × 17 × 137
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√6,987 = [83; (1, 1, 2, 3, 83, 3, 2, 1, 1, 166)]
Period length 10 — the block in parentheses repeats forever.
Representations
- In words
- six thousand nine hundred eighty-seven
- Ordinal
- 6987th
- Binary
- 1101101001011
- Octal
- 15513
- Hexadecimal
- 0x1B4B
- Base64
- G0s=
- One's complement
- 58,548 (16-bit)
- Scientific notation
- 6.987 × 10³
- As a duration
- 6,987 s = 1 hour, 56 minutes, 27 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ϛϡπζʹ
- Mayan (base 20)
- 𝋱·𝋩·𝋧
- Chinese
- 六千九百八十七
- Chinese (financial)
- 陸仟玖佰捌拾柒
Digit at this position in famous constants
- π — Pi (π)
- Digit 6,987 = 2
- e — Euler's number (e)
- Digit 6,987 = 3
- φ — Golden ratio (φ)
- Digit 6,987 = 1
- √2 — Pythagoras's (√2)
- Digit 6,987 = 0
- ln 2 — Natural log of 2
- Digit 6,987 = 7
- γ — Euler-Mascheroni (γ)
- Digit 6,987 = 7
Also seen as
UTF-8 encoding: E1 AD 8B (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.27.75.
- Address
- 0.0.27.75
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.27.75
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 6,987 Hz is closest to:
- Concert pitch (A4 = 440 Hz): A8 (7040 Hz, -13¢)
- Scientific pitch (C4 = 256 Hz): A8 (6888.6 Hz, +25¢)
- Baroque pitch (A4 = 415 Hz): A♯8 (7034.8 Hz, -12¢)
The digit sequence 6987 first appears in π at position 40,046 of the decimal expansion (the 40,046ordinal-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°.