138,023
138,023 is a composite number, odd.
138,023 (one hundred thirty-eight thousand twenty-three) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 17 × 23 × 353. Written other ways, in hexadecimal, 0x21B27.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 320,831
- Recamán's sequence
- a(492,781) = 138,023
- Square (n²)
- 19,050,348,529
- Cube (n³)
- 2,629,386,255,018,167
- Divisor count
- 8
- σ(n) — sum of divisors
- 152,928
- φ(n) — Euler's totient
- 123,904
- Sum of prime factors
- 393
Primality
Prime factorization: 17 × 23 × 353
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,023 = [371; (1, 1, 16, 1, 3, 1, 1, 7, 38, 1, 38, 7, 1, 1, 3, 1, 16, 1, 1, 742)]
Period length 20 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-eight thousand twenty-three
- Ordinal
- 138023rd
- Binary
- 100001101100100111
- Octal
- 415447
- Hexadecimal
- 0x21B27
- Base64
- Ahsn
- One's complement
- 4,294,829,272 (32-bit)
- Scientific notation
- 1.38023 × 10⁵
- As a duration
- 138,023 s = 1 day, 14 hours, 20 minutes, 23 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋 𒌋𒌋𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρληκγʹ
- Mayan (base 20)
- 𝋱·𝋥·𝋡·𝋣
- Chinese
- 一十三萬八千零二十三
- Chinese (financial)
- 壹拾參萬捌仟零貳拾參
Also seen as
UTF-8 encoding: F0 A1 AC A7 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.27.39.
- Address
- 0.2.27.39
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.27.39
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 138,023 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 138023 first appears in π at position 101,483 of the decimal expansion (the 101,483ordinal-suffix:rd 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.