104,780
104,780 is a composite number, even.
104,780 (one hundred four thousand seven hundred eighty) is an even 6-digit number. It is a composite number with 36 divisors, and factors as 2² × 5 × 13² × 31. Its proper divisors sum to 141,172, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1994C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 87,401
- Recamán's sequence
- a(91,631) = 104,780
- Square (n²)
- 10,978,848,400
- Cube (n³)
- 1,150,363,735,352,000
- Divisor count
- 36
- σ(n) — sum of divisors
- 245,952
- φ(n) — Euler's totient
- 37,440
- Sum of prime factors
- 66
Primality
Prime factorization: 2 2 × 5 × 13 2 × 31
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√104,780 = [323; (1, 2, 3, 3, 1, 1, 7, 1, 1, 1, 2, 3, 2, 4, 1, 10, 1, 2, 1, 10, 1, 4, 2, 3, …)]
Period length 36 — the block in parentheses repeats forever.
Representations
- In words
- one hundred four thousand seven hundred eighty
- Ordinal
- 104780th
- Binary
- 11001100101001100
- Octal
- 314514
- Hexadecimal
- 0x1994C
- Base64
- AZlM
- One's complement
- 4,294,862,515 (32-bit)
- Scientific notation
- 1.0478 × 10⁵
- As a duration
- 104,780 s = 1 day, 5 hours, 6 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρδψπʹ
- Mayan (base 20)
- 𝋭·𝋡·𝋳·𝋠
- Chinese
- 一十萬四千七百八十
- Chinese (financial)
- 壹拾萬肆仟柒佰捌拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 104780, here are decompositions:
- 7 + 104773 = 104780
- 19 + 104761 = 104780
- 37 + 104743 = 104780
- 73 + 104707 = 104780
- 79 + 104701 = 104780
- 97 + 104683 = 104780
- 103 + 104677 = 104780
- 157 + 104623 = 104780
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.153.76.
- Address
- 0.1.153.76
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.153.76
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 104,780 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 104780 first appears in π at position 516,724 of the decimal expansion (the 516,724ordinal-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.