100,000
100,000 is a composite number, even.
100,000 (one hundred thousand) is an even 6-digit number. It is a composite number with 36 divisors, and factors as 2⁵ × 5⁵. Its proper divisors sum to 146,078, more than the number itself, making it an abundant number. It is a power of ten (10⁵). Written other ways, in hexadecimal, 0x186A0.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 1
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 1
- Flips to (rotate 180°)
- 1
- Recamán's sequence
- a(255,840) = 100,000
- Square (n²)
- 10,000,000,000
- Cube (n³)
- 1,000,000,000,000,000
- Divisor count
- 36
- σ(n) — sum of divisors
- 246,078
- φ(n) — Euler's totient
- 40,000
- Sum of prime factors
- 35
Primality
Prime factorization: 2 5 × 5 5
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√100,000 = [316; (4, 2, 1, 1, 3, 1, 1, 2, 15, 1, 4, 1, 3, 6, 1, 5, 2, 6, 7, 1, 5, 1, 2, 2, …)]
Representations
- In words
- one hundred thousand
- Ordinal
- 100000th
- Binary
- 11000011010100000
- Octal
- 303240
- Hexadecimal
- 0x186A0
- Base64
- AYag
- One's complement
- 4,294,867,295 (32-bit)
- Scientific notation
- 1 × 10⁵
- As a duration
- 100,000 s = 1 day, 3 hours, 46 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐
- Greek (Milesian)
- ͵ρ
- Mayan (base 20)
- 𝋬·𝋪·𝋠·𝋠
- Chinese
- 一十萬
- Chinese (financial)
- 壹拾萬
Digit at this position in famous constants
- π — Pi (π)
- Digit 100,000 = 4
- e — Euler's number (e)
- Digit 100,000 = 5
- φ — Golden ratio (φ)
- Digit 100,000 = 0
- √2 — Pythagoras's (√2)
- Digit 100,000 = 2
- ln 2 — Natural log of 2
- Digit 100,000 = 7
- γ — Euler-Mascheroni (γ)
- Digit 100,000 = 9
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100000, here are decompositions:
- 11 + 99989 = 100000
- 29 + 99971 = 100000
- 71 + 99929 = 100000
- 167 + 99833 = 100000
- 191 + 99809 = 100000
- 233 + 99767 = 100000
- 239 + 99761 = 100000
- 281 + 99719 = 100000
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 98 9A A0 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.134.160.
- Address
- 0.1.134.160
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.134.160
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 100,000 and was likely granted around 1870.
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.