138,789
138,789 is a composite number, odd.
138,789 (one hundred thirty-eight thousand seven hundred eighty-nine) is an odd 6-digit number. It is a composite number with 12 divisors, and factors as 3² × 7 × 2,203. Written other ways, in hexadecimal, 0x21E25.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 36
- Digit product
- 12,096
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 987,831
- Recamán's sequence
- a(491,249) = 138,789
- Square (n²)
- 19,262,386,521
- Cube (n³)
- 2,673,407,362,863,069
- Divisor count
- 12
- σ(n) — sum of divisors
- 229,216
- φ(n) — Euler's totient
- 79,272
- Sum of prime factors
- 2,216
Primality
Prime factorization: 3 2 × 7 × 2203
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,789 = [372; (1, 1, 5, 5, 2, 1, 26, 1, 9, 1, 148, 9, 5, 4, 1, 2, 1, 4, 1, 3, 1, 1, 2, 1, …)]
Representations
- In words
- one hundred thirty-eight thousand seven hundred eighty-nine
- Ordinal
- 138789th
- Binary
- 100001111000100101
- Octal
- 417045
- Hexadecimal
- 0x21E25
- Base64
- Ah4l
- One's complement
- 4,294,828,506 (32-bit)
- Scientific notation
- 1.38789 × 10⁵
- As a duration
- 138,789 s = 1 day, 14 hours, 33 minutes, 9 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρληψπθʹ
- Mayan (base 20)
- 𝋱·𝋦·𝋳·𝋩
- Chinese
- 一十三萬八千七百八十九
- Chinese (financial)
- 壹拾參萬捌仟柒佰捌拾玖
Also seen as
UTF-8 encoding: F0 A1 B8 A5 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.30.37.
- Address
- 0.2.30.37
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.30.37
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 138,789 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°.