138,746
138,746 is a composite number, even.
138,746 (one hundred thirty-eight thousand seven hundred forty-six) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 173 × 401. Written other ways, in hexadecimal, 0x21DFA.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 29
- Digit product
- 4,032
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 647,831
- Recamán's sequence
- a(491,335) = 138,746
- Square (n²)
- 19,250,452,516
- Cube (n³)
- 2,670,923,284,784,936
- Divisor count
- 8
- σ(n) — sum of divisors
- 209,844
- φ(n) — Euler's totient
- 68,800
- Sum of prime factors
- 576
Primality
Prime factorization: 2 × 173 × 401
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,746 = [372; (2, 17, 1, 2, 29, 2, 5, 1, 1, 1, 73, 1, 5, 1, 1, 1, 1, 5, 1, 73, 1, 1, 1, 5, …)]
Period length 31 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-eight thousand seven hundred forty-six
- Ordinal
- 138746th
- Binary
- 100001110111111010
- Octal
- 416772
- Hexadecimal
- 0x21DFA
- Base64
- Ah36
- One's complement
- 4,294,828,549 (32-bit)
- Scientific notation
- 1.38746 × 10⁵
- As a duration
- 138,746 s = 1 day, 14 hours, 32 minutes, 26 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρληψμϛʹ
- Mayan (base 20)
- 𝋱·𝋦·𝋱·𝋦
- Chinese
- 一十三萬八千七百四十六
- Chinese (financial)
- 壹拾參萬捌仟柒佰肆拾陸
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 138746, here are decompositions:
- 7 + 138739 = 138746
- 19 + 138727 = 138746
- 67 + 138679 = 138746
- 109 + 138637 = 138746
- 199 + 138547 = 138746
- 229 + 138517 = 138746
- 277 + 138469 = 138746
- 313 + 138433 = 138746
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 B7 BA (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.29.250.
- Address
- 0.2.29.250
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.29.250
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 138,746 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 138746 first appears in π at position 179,893 of the decimal expansion (the 179,893ordinal-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.