138,704
138,704 is a composite number, even.
138,704 (one hundred thirty-eight thousand seven hundred four) is an even 6-digit number. It is a composite number with 10 divisors, and factors as 2⁴ × 8,669. Written other ways, in hexadecimal, 0x21DD0.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 407,831
- Recamán's sequence
- a(491,419) = 138,704
- Square (n²)
- 19,238,799,616
- Cube (n³)
- 2,668,498,461,937,664
- Divisor count
- 10
- σ(n) — sum of divisors
- 268,770
- φ(n) — Euler's totient
- 69,344
- Sum of prime factors
- 8,677
Primality
Prime factorization: 2 4 × 8669
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,704 = [372; (2, 3, 15, 1, 1, 3, 1, 1, 23, 2, 6, 1, 2, 1, 7, 10, 13, 2, 3, 1, 45, 1, 3, 2, …)]
Period length 42 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-eight thousand seven hundred four
- Ordinal
- 138704th
- Binary
- 100001110111010000
- Octal
- 416720
- Hexadecimal
- 0x21DD0
- Base64
- Ah3Q
- One's complement
- 4,294,828,591 (32-bit)
- Scientific notation
- 1.38704 × 10⁵
- As a duration
- 138,704 s = 1 day, 14 hours, 31 minutes, 44 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρληψδʹ
- Mayan (base 20)
- 𝋱·𝋦·𝋯·𝋤
- Chinese
- 一十三萬八千七百零四
- Chinese (financial)
- 壹拾參萬捌仟柒佰零肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 138704, here are decompositions:
- 43 + 138661 = 138704
- 67 + 138637 = 138704
- 127 + 138577 = 138704
- 157 + 138547 = 138704
- 193 + 138511 = 138704
- 211 + 138493 = 138704
- 271 + 138433 = 138704
- 277 + 138427 = 138704
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 B7 90 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.29.208.
- Address
- 0.2.29.208
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.29.208
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 138,704 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 138704 first appears in π at position 265,413 of the decimal expansion (the 265,413ordinal-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.