138,875
138,875 is a composite number, odd.
138,875 (one hundred thirty-eight thousand eight hundred seventy-five) is an odd 6-digit number. It is a composite number with 16 divisors, and factors as 5³ × 11 × 101. Written other ways, in hexadecimal, 0x21E7B.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 32
- Digit product
- 6,720
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 578,831
- Recamán's sequence
- a(491,077) = 138,875
- Square (n²)
- 19,286,265,625
- Cube (n³)
- 2,678,380,138,671,875
- Divisor count
- 16
- σ(n) — sum of divisors
- 190,944
- φ(n) — Euler's totient
- 100,000
- Sum of prime factors
- 127
Primality
Prime factorization: 5 3 × 11 × 101
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,875 = [372; (1, 1, 1, 14, 1, 1, 5, 5, 1, 3, 1, 1, 2, 1, 38, 1, 1, 29, 3, 3, 1, 3, 1, 2, …)]
Representations
- In words
- one hundred thirty-eight thousand eight hundred seventy-five
- Ordinal
- 138875th
- Binary
- 100001111001111011
- Octal
- 417173
- Hexadecimal
- 0x21E7B
- Base64
- Ah57
- One's complement
- 4,294,828,420 (32-bit)
- Scientific notation
- 1.38875 × 10⁵
- As a duration
- 138,875 s = 1 day, 14 hours, 34 minutes, 35 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρληωοεʹ
- Mayan (base 20)
- 𝋱·𝋧·𝋣·𝋯
- Chinese
- 一十三萬八千八百七十五
- Chinese (financial)
- 壹拾參萬捌仟捌佰柒拾伍
Also seen as
UTF-8 encoding: F0 A1 B9 BB (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.30.123.
- Address
- 0.2.30.123
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.30.123
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 138,875 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 138875 first appears in π at position 149,919 of the decimal expansion (the 149,919ordinal-suffix:th digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.