31,104
31,104 is a composite number, even.
31,104 (thirty-one thousand one hundred four) is an even 5-digit number. It is a composite number with 48 divisors, and factors as 2⁷ × 3⁵. Its proper divisors sum to 61,716, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x7980.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 9
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 40,113
- Recamán's sequence
- a(31,455) = 31,104
- Square (n²)
- 967,458,816
- Cube (n³)
- 30,091,839,012,864
- Divisor count
- 48
- σ(n) — sum of divisors
- 92,820
- φ(n) — Euler's totient
- 10,368
- Sum of prime factors
- 29
Primality
Prime factorization: 2 7 × 3 5
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√31,104 = [176; (2, 1, 3, 21, 1, 3, 2, 1, 1, 87, 1, 1, 2, 3, 1, 21, 3, 1, 2, 352)]
Period length 20 — the block in parentheses repeats forever.
Representations
- In words
- thirty-one thousand one hundred four
- Ordinal
- 31104th
- Binary
- 111100110000000
- Octal
- 74600
- Hexadecimal
- 0x7980
- Base64
- eYA=
- One's complement
- 34,431 (16-bit)
- Scientific notation
- 3.1104 × 10⁴
- As a duration
- 31,104 s = 8 hours, 38 minutes, 24 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓆼𓍢𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵λαρδʹ
- Mayan (base 20)
- 𝋣·𝋱·𝋯·𝋤
- Chinese
- 三萬一千一百零四
- Chinese (financial)
- 參萬壹仟壹佰零肆
Digit at this position in famous constants
- π — Pi (π)
- Digit 31,104 = 8
- e — Euler's number (e)
- Digit 31,104 = 9
- φ — Golden ratio (φ)
- Digit 31,104 = 7
- √2 — Pythagoras's (√2)
- Digit 31,104 = 4
- ln 2 — Natural log of 2
- Digit 31,104 = 4
- γ — Euler-Mascheroni (γ)
- Digit 31,104 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 31104, here are decompositions:
- 13 + 31091 = 31104
- 23 + 31081 = 31104
- 41 + 31063 = 31104
- 53 + 31051 = 31104
- 71 + 31033 = 31104
- 127 + 30977 = 31104
- 163 + 30941 = 31104
- 167 + 30937 = 31104
Showing the first eight; more decompositions exist.
UTF-8 encoding: E7 A6 80 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.121.128.
- Address
- 0.0.121.128
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.121.128
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 31104 first appears in π at position 244,315 of the decimal expansion (the 244,315ordinal-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°.