138,996
138,996 is a composite number, even.
138,996 (one hundred thirty-eight thousand nine hundred ninety-six) is an even 6-digit number. It is a composite number with 72 divisors, and factors as 2² × 3⁵ × 11 × 13. Its proper divisors sum to 289,068, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x21EF4.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 36
- Digit product
- 11,664
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 699,831
- Recamán's sequence
- a(490,835) = 138,996
- Square (n²)
- 19,319,888,016
- Cube (n³)
- 2,685,387,154,671,936
- Divisor count
- 72
- σ(n) — sum of divisors
- 428,064
- φ(n) — Euler's totient
- 38,880
- Sum of prime factors
- 43
Primality
Prime factorization: 2 2 × 3 5 × 11 × 13
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,996 = [372; (1, 4, 1, 1, 1, 1, 4, 1, 1, 1, 1, 4, 1, 744)]
Period length 14 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-eight thousand nine hundred ninety-six
- Ordinal
- 138996th
- Binary
- 100001111011110100
- Octal
- 417364
- Hexadecimal
- 0x21EF4
- Base64
- Ah70
- One's complement
- 4,294,828,299 (32-bit)
- Scientific notation
- 1.38996 × 10⁵
- As a duration
- 138,996 s = 1 day, 14 hours, 36 minutes, 36 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρληϡϟϛʹ
- Mayan (base 20)
- 𝋱·𝋧·𝋩·𝋰
- Chinese
- 一十三萬八千九百九十六
- Chinese (financial)
- 壹拾參萬捌仟玖佰玖拾陸
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 138996, here are decompositions:
- 19 + 138977 = 138996
- 29 + 138967 = 138996
- 37 + 138959 = 138996
- 59 + 138937 = 138996
- 73 + 138923 = 138996
- 79 + 138917 = 138996
- 97 + 138899 = 138996
- 103 + 138893 = 138996
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 BB B4 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.30.244.
- Address
- 0.2.30.244
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.30.244
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 138,996 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 138996 first appears in π at position 84,804 of the decimal expansion (the 84,804ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.