115,820
115,820 is a composite number, even.
115,820 (one hundred fifteen thousand eight hundred twenty) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 5,791. Its proper divisors sum to 127,444, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1C46C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 28,511
- Recamán's sequence
- a(73,047) = 115,820
- Square (n²)
- 13,414,272,400
- Cube (n³)
- 1,553,641,029,368,000
- Divisor count
- 12
- σ(n) — sum of divisors
- 243,264
- φ(n) — Euler's totient
- 46,320
- Sum of prime factors
- 5,800
Primality
Prime factorization: 2 2 × 5 × 5791
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√115,820 = [340; (3, 10, 1, 4, 1, 2, 2, 23, 21, 1, 10, 1, 1, 2, 1, 1, 3, 1, 4, 4, 2, 16, 6, 2, …)]
Period length 52 — the block in parentheses repeats forever.
Representations
- In words
- one hundred fifteen thousand eight hundred twenty
- Ordinal
- 115820th
- Binary
- 11100010001101100
- Octal
- 342154
- Hexadecimal
- 0x1C46C
- Base64
- AcRs
- One's complement
- 4,294,851,475 (32-bit)
- Scientific notation
- 1.1582 × 10⁵
- As a duration
- 115,820 s = 1 day, 8 hours, 10 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹 𒌋 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ριεωκʹ
- Mayan (base 20)
- 𝋮·𝋩·𝋫·𝋠
- Chinese
- 一十一萬五千八百二十
- Chinese (financial)
- 壹拾壹萬伍仟捌佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 115820, here are decompositions:
- 13 + 115807 = 115820
- 37 + 115783 = 115820
- 43 + 115777 = 115820
- 79 + 115741 = 115820
- 127 + 115693 = 115820
- 157 + 115663 = 115820
- 163 + 115657 = 115820
- 223 + 115597 = 115820
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.196.108.
- Address
- 0.1.196.108
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.196.108
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 115,820 and was likely granted around 1871.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.