47,000
47,000 is a composite number, even.
47,000 (forty-seven thousand) is an even 5-digit number. It is a composite number with 32 divisors, and factors as 2³ × 5³ × 47. Its proper divisors sum to 65,320, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xB798.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 11
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 74
- Recamán's sequence
- a(148,207) = 47,000
- Square (n²)
- 2,209,000,000
- Cube (n³)
- 103,823,000,000,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 112,320
- φ(n) — Euler's totient
- 18,400
- Sum of prime factors
- 68
Primality
Prime factorization: 2 3 × 5 3 × 47
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√47,000 = [216; (1, 3, 1, 6, 1, 16, 2, 8, 2, 1, 3, 17, 13, 1, 13, 17, 3, 1, 2, 8, 2, 16, 1, 6, …)]
Period length 28 — the block in parentheses repeats forever.
Representations
- In words
- forty-seven thousand
- Ordinal
- 47000th
- Binary
- 1011011110011000
- Octal
- 133630
- Hexadecimal
- 0xB798
- Base64
- t5g=
- One's complement
- 18,535 (16-bit)
- Scientific notation
- 4.7 × 10⁴
- As a duration
- 47,000 s = 13 hours, 3 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹 𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼
- Greek (Milesian)
- ͵μζ
- Mayan (base 20)
- 𝋥·𝋱·𝋪·𝋠
- Chinese
- 四萬七千
- Chinese (financial)
- 肆萬柒仟
Digit at this position in famous constants
- π — Pi (π)
- Digit 47,000 = 1
- e — Euler's number (e)
- Digit 47,000 = 6
- φ — Golden ratio (φ)
- Digit 47,000 = 2
- √2 — Pythagoras's (√2)
- Digit 47,000 = 3
- ln 2 — Natural log of 2
- Digit 47,000 = 8
- γ — Euler-Mascheroni (γ)
- Digit 47,000 = 5
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 47000, here are decompositions:
- 3 + 46997 = 47000
- 7 + 46993 = 47000
- 43 + 46957 = 47000
- 67 + 46933 = 47000
- 139 + 46861 = 47000
- 181 + 46819 = 47000
- 193 + 46807 = 47000
- 229 + 46771 = 47000
Showing the first eight; more decompositions exist.
UTF-8 encoding: EB 9E 98 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.183.152.
- Address
- 0.0.183.152
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.183.152
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 47000 first appears in π at position 28,988 of the decimal expansion (the 28,988ordinal-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.