115,420
115,420 is a composite number, even.
115,420 (one hundred fifteen thousand four hundred twenty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 29 × 199. Its proper divisors sum to 136,580, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1C2DC.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 24,511
- Recamán's sequence
- a(72,247) = 115,420
- Square (n²)
- 13,321,776,400
- Cube (n³)
- 1,537,599,432,088,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 252,000
- φ(n) — Euler's totient
- 44,352
- Sum of prime factors
- 237
Primality
Prime factorization: 2 2 × 5 × 29 × 199
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√115,420 = [339; (1, 2, 1, 3, 2, 7, 1, 17, 1, 134, 1, 17, 1, 7, 2, 3, 1, 2, 1, 678)]
Period length 20 — the block in parentheses repeats forever.
Representations
- In words
- one hundred fifteen thousand four hundred twenty
- Ordinal
- 115420th
- Binary
- 11100001011011100
- Octal
- 341334
- Hexadecimal
- 0x1C2DC
- Base64
- AcLc
- One's complement
- 4,294,851,875 (32-bit)
- Scientific notation
- 1.1542 × 10⁵
- As a duration
- 115,420 s = 1 day, 8 hours, 3 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ριευκʹ
- Mayan (base 20)
- 𝋮·𝋨·𝋫·𝋠
- Chinese
- 一十一萬五千四百二十
- Chinese (financial)
- 壹拾壹萬伍仟肆佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 115420, here are decompositions:
- 59 + 115361 = 115420
- 83 + 115337 = 115420
- 89 + 115331 = 115420
- 101 + 115319 = 115420
- 197 + 115223 = 115420
- 257 + 115163 = 115420
- 269 + 115151 = 115420
- 293 + 115127 = 115420
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.194.220.
- Address
- 0.1.194.220
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.194.220
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 115,420 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.