120,428
120,428 is a composite number, even.
120,428 (one hundred twenty thousand four hundred twenty-eight) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2² × 7 × 11 × 17 × 23. Its proper divisors sum to 169,876, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1D66C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 824,021
- Square (n²)
- 14,502,903,184
- Cube (n³)
- 1,746,555,624,642,752
- Divisor count
- 48
- σ(n) — sum of divisors
- 290,304
- φ(n) — Euler's totient
- 42,240
- Sum of prime factors
- 62
Primality
Prime factorization: 2 2 × 7 × 11 × 17 × 23
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√120,428 = [347; (36, 1, 1, 8, 1, 1, 36, 694)]
Period length 8 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty thousand four hundred twenty-eight
- Ordinal
- 120428th
- Binary
- 11101011001101100
- Octal
- 353154
- Hexadecimal
- 0x1D66C
- Base64
- AdZs
- One's complement
- 4,294,846,867 (32-bit)
- Scientific notation
- 1.20428 × 10⁵
- As a duration
- 120,428 s = 1 day, 9 hours, 27 minutes, 8 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρκυκηʹ
- Mayan (base 20)
- 𝋯·𝋡·𝋡·𝋨
- Chinese
- 一十二萬零四百二十八
- Chinese (financial)
- 壹拾貳萬零肆佰貳拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 120428, here are decompositions:
- 31 + 120397 = 120428
- 37 + 120391 = 120428
- 79 + 120349 = 120428
- 97 + 120331 = 120428
- 109 + 120319 = 120428
- 151 + 120277 = 120428
- 181 + 120247 = 120428
- 229 + 120199 = 120428
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9D 99 AC (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.214.108.
- Address
- 0.1.214.108
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.214.108
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 120,428 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.