138,348
138,348 is a composite number, even.
138,348 (one hundred thirty-eight thousand three hundred forty-eight) is an even 6-digit number. It is a composite number with 60 divisors, and factors as 2² × 3⁴ × 7 × 61. Its proper divisors sum to 281,764, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x21C6C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 27
- Digit product
- 2,304
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 843,831
- Recamán's sequence
- a(492,131) = 138,348
- Square (n²)
- 19,140,169,104
- Cube (n³)
- 2,648,004,115,200,192
- Divisor count
- 60
- σ(n) — sum of divisors
- 420,112
- φ(n) — Euler's totient
- 38,880
- Sum of prime factors
- 84
Primality
Prime factorization: 2 2 × 3 4 × 7 × 61
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,348 = [371; (1, 19, 1, 1, 1, 81, 1, 184, 1, 81, 1, 1, 1, 19, 1, 742)]
Period length 16 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-eight thousand three hundred forty-eight
- Ordinal
- 138348th
- Binary
- 100001110001101100
- Octal
- 416154
- Hexadecimal
- 0x21C6C
- Base64
- Ahxs
- One's complement
- 4,294,828,947 (32-bit)
- Scientific notation
- 1.38348 × 10⁵
- As a duration
- 138,348 s = 1 day, 14 hours, 25 minutes, 48 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλητμηʹ
- Mayan (base 20)
- 𝋱·𝋥·𝋱·𝋨
- Chinese
- 一十三萬八千三百四十八
- Chinese (financial)
- 壹拾參萬捌仟參佰肆拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 138348, here are decompositions:
- 11 + 138337 = 138348
- 29 + 138319 = 138348
- 37 + 138311 = 138348
- 59 + 138289 = 138348
- 97 + 138251 = 138348
- 101 + 138247 = 138348
- 107 + 138241 = 138348
- 109 + 138239 = 138348
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 B1 AC (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.28.108.
- Address
- 0.2.28.108
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.28.108
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 138,348 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.