138,437
138,437 is a composite number, odd.
138,437 (one hundred thirty-eight thousand four hundred thirty-seven) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 13 × 23 × 463. Written other ways, in hexadecimal, 0x21CC5.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 26
- Digit product
- 2,016
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 734,831
- Recamán's sequence
- a(491,953) = 138,437
- Square (n²)
- 19,164,802,969
- Cube (n³)
- 2,653,117,828,619,453
- Divisor count
- 8
- σ(n) — sum of divisors
- 155,904
- φ(n) — Euler's totient
- 121,968
- Sum of prime factors
- 499
Primality
Prime factorization: 13 × 23 × 463
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,437 = [372; (14, 25, 1, 1, 2, 3, 7, 1, 3, 1, 6, 6, 3, 1, 2, 1, 3, 185, 1, 3, 3, 3, 1, 5, …)]
Period length 58 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-eight thousand four hundred thirty-seven
- Ordinal
- 138437th
- Binary
- 100001110011000101
- Octal
- 416305
- Hexadecimal
- 0x21CC5
- Base64
- AhzF
- One's complement
- 4,294,828,858 (32-bit)
- Scientific notation
- 1.38437 × 10⁵
- As a duration
- 138,437 s = 1 day, 14 hours, 27 minutes, 17 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρληυλζʹ
- Mayan (base 20)
- 𝋱·𝋦·𝋡·𝋱
- Chinese
- 一十三萬八千四百三十七
- Chinese (financial)
- 壹拾參萬捌仟肆佰參拾柒
Also seen as
UTF-8 encoding: F0 A1 B3 85 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.28.197.
- Address
- 0.2.28.197
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.28.197
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 138,437 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 138437 first appears in π at position 8,209 of the decimal expansion (the 8,209ordinal-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.