128,007
128,007 is a composite number, odd.
128,007 (one hundred twenty-eight thousand seven) is an odd 6-digit number. It is a composite number with 16 divisors, and factors as 3³ × 11 × 431. Written other ways, in hexadecimal, 0x1F407.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 700,821
- Square (n²)
- 16,385,792,049
- Cube (n³)
- 2,097,496,082,816,343
- Divisor count
- 16
- σ(n) — sum of divisors
- 207,360
- φ(n) — Euler's totient
- 77,400
- Sum of prime factors
- 451
Primality
Prime factorization: 3 3 × 11 × 431
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√128,007 = [357; (1, 3, 1, 1, 3, 1, 2, 1, 2, 3, 1, 6, 1, 1, 1, 1, 6, 12, 5, 2, 1, 1, 1, 2, …)]
Representations
- In words
- one hundred twenty-eight thousand seven
- Ordinal
- 128007th
- Binary
- 11111010000000111
- Octal
- 372007
- Hexadecimal
- 0x1F407
- Base64
- AfQH
- One's complement
- 4,294,839,288 (32-bit)
- Scientific notation
- 1.28007 × 10⁵
- As a duration
- 128,007 s = 1 day, 11 hours, 33 minutes, 27 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρκηζʹ
- Mayan (base 20)
- 𝋰·𝋠·𝋠·𝋧
- Chinese
- 一十二萬八千零七
- Chinese (financial)
- 壹拾貳萬捌仟零柒
Also seen as
UTF-8 encoding: F0 9F 90 87 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.244.7.
- Address
- 0.1.244.7
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.244.7
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 128,007 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.