138,338
138,338 is a composite number, even.
138,338 (one hundred thirty-eight thousand three hundred thirty-eight) is an even 6-digit number. It is a composite number with 6 divisors, and factors as 2 × 263². Written other ways, in hexadecimal, 0x21C62.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 26
- Digit product
- 1,728
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 833,831
- Recamán's sequence
- a(492,151) = 138,338
- Square (n²)
- 19,137,402,244
- Cube (n³)
- 2,647,429,951,630,472
- Divisor count
- 6
- σ(n) — sum of divisors
- 208,299
- φ(n) — Euler's totient
- 68,906
- Sum of prime factors
- 528
Primality
Prime factorization: 2 × 263 2
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,338 = [371; (1, 15, 5, 1, 3, 1, 6, 1, 7, 23, 1, 6, 1, 1, 1, 2, 1, 1, 5, 1, 2, 21, 1, 1, …)]
Representations
- In words
- one hundred thirty-eight thousand three hundred thirty-eight
- Ordinal
- 138338th
- Binary
- 100001110001100010
- Octal
- 416142
- Hexadecimal
- 0x21C62
- Base64
- Ahxi
- One's complement
- 4,294,828,957 (32-bit)
- Scientific notation
- 1.38338 × 10⁵
- As a duration
- 138,338 s = 1 day, 14 hours, 25 minutes, 38 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλητληʹ
- Mayan (base 20)
- 𝋱·𝋥·𝋰·𝋲
- Chinese
- 一十三萬八千三百三十八
- Chinese (financial)
- 壹拾參萬捌仟參佰參拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 138338, here are decompositions:
- 19 + 138319 = 138338
- 97 + 138241 = 138338
- 157 + 138181 = 138338
- 181 + 138157 = 138338
- 199 + 138139 = 138338
- 331 + 138007 = 138338
- 397 + 137941 = 138338
- 547 + 137791 = 138338
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 B1 A2 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.28.98.
- Address
- 0.2.28.98
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.28.98
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 138,338 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 138338 first appears in π at position 268,179 of the decimal expansion (the 268,179ordinal-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.