120,872
120,872 is a composite number, even.
120,872 (one hundred twenty thousand eight hundred seventy-two) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 29 × 521. Written other ways, in hexadecimal, 0x1D828.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 278,021
- Square (n²)
- 14,610,040,384
- Cube (n³)
- 1,765,944,801,294,848
- Divisor count
- 16
- σ(n) — sum of divisors
- 234,900
- φ(n) — Euler's totient
- 58,240
- Sum of prime factors
- 556
Primality
Prime factorization: 2 3 × 29 × 521
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√120,872 = [347; (1, 1, 1, 694)]
Period length 4 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty thousand eight hundred seventy-two
- Ordinal
- 120872nd
- Binary
- 11101100000101000
- Octal
- 354050
- Hexadecimal
- 0x1D828
- Base64
- Adgo
- One's complement
- 4,294,846,423 (32-bit)
- Scientific notation
- 1.20872 × 10⁵
- As a duration
- 120,872 s = 1 day, 9 hours, 34 minutes, 32 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρκωοβʹ
- Mayan (base 20)
- 𝋯·𝋢·𝋣·𝋬
- Chinese
- 一十二萬零八百七十二
- Chinese (financial)
- 壹拾貳萬零捌佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 120872, here are decompositions:
- 43 + 120829 = 120872
- 61 + 120811 = 120872
- 109 + 120763 = 120872
- 151 + 120721 = 120872
- 163 + 120709 = 120872
- 181 + 120691 = 120872
- 211 + 120661 = 120872
- 523 + 120349 = 120872
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9D A0 A8 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.216.40.
- Address
- 0.1.216.40
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.216.40
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 120,872 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.