139,048
139,048 is a composite number, even.
139,048 (one hundred thirty-nine thousand forty-eight) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2³ × 7 × 13 × 191. Its proper divisors sum to 183,512, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x21F28.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 25
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 840,931
- Recamán's sequence
- a(490,731) = 139,048
- Square (n²)
- 19,334,346,304
- Cube (n³)
- 2,688,402,184,878,592
- Divisor count
- 32
- σ(n) — sum of divisors
- 322,560
- φ(n) — Euler's totient
- 54,720
- Sum of prime factors
- 217
Primality
Prime factorization: 2 3 × 7 × 13 × 191
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,048 = [372; (1, 8, 4, 1, 3, 1, 7, 1, 3, 1, 1, 4, 4, 2, 8, 7, 1, 81, 1, 81, 1, 7, 8, 2, …)]
Period length 38 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-nine thousand forty-eight
- Ordinal
- 139048th
- Binary
- 100001111100101000
- Octal
- 417450
- Hexadecimal
- 0x21F28
- Base64
- Ah8o
- One's complement
- 4,294,828,247 (32-bit)
- Scientific notation
- 1.39048 × 10⁵
- As a duration
- 139,048 s = 1 day, 14 hours, 37 minutes, 28 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλθμηʹ
- Mayan (base 20)
- 𝋱·𝋧·𝋬·𝋨
- Chinese
- 一十三萬九千零四十八
- Chinese (financial)
- 壹拾參萬玖仟零肆拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 139048, here are decompositions:
- 71 + 138977 = 139048
- 89 + 138959 = 139048
- 131 + 138917 = 139048
- 149 + 138899 = 139048
- 179 + 138869 = 139048
- 227 + 138821 = 139048
- 251 + 138797 = 139048
- 317 + 138731 = 139048
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 BC A8 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.31.40.
- Address
- 0.2.31.40
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.31.40
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 139,048 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.