72,104
72,104 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 14
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 40,127
- Recamán's sequence
- a(127,391) = 72,104
- Square (n²)
- 5,198,986,816
- Cube (n³)
- 374,867,745,380,864
- Divisor count
- 8
- σ(n) — sum of divisors
- 135,210
- φ(n) — Euler's totient
- 36,048
- Sum of prime factors
- 9,019
Primality
Prime factorization: 2 3 × 9013
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- seventy-two thousand one hundred four
- Ordinal
- 72104th
- Binary
- 10001100110101000
- Octal
- 214650
- Hexadecimal
- 0x119A8
- Base64
- ARmo
- One's complement
- 4,294,895,191 (32-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋 𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵οβρδʹ
- Mayan (base 20)
- 𝋩·𝋠·𝋥·𝋤
- Chinese
- 七萬二千一百零四
- Chinese (financial)
- 柒萬貳仟壹佰零肆
Digit at this position in famous constants
- π — Pi (π)
- Digit 72,104 = 4
- e — Euler's number (e)
- Digit 72,104 = 1
- φ — Golden ratio (φ)
- Digit 72,104 = 0
- √2 — Pythagoras's (√2)
- Digit 72,104 = 9
- ln 2 — Natural log of 2
- Digit 72,104 = 6
- γ — Euler-Mascheroni (γ)
- Digit 72,104 = 7
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 72104, here are decompositions:
- 3 + 72101 = 72104
- 13 + 72091 = 72104
- 31 + 72073 = 72104
- 61 + 72043 = 72104
- 73 + 72031 = 72104
- 157 + 71947 = 72104
- 163 + 71941 = 72104
- 223 + 71881 = 72104
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.25.168.
- Address
- 0.1.25.168
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.25.168
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 72104 first appears in π at position 4,772 of the decimal expansion (the 4,772ordinal-suffix:nd 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.