138,498
138,498 is a composite number, even.
138,498 (one hundred thirty-eight thousand four hundred ninety-eight) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 3 × 41 × 563. Its proper divisors sum to 145,758, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x21D02.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 33
- Digit product
- 6,912
- Digital root
- 6
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 894,831
- Recamán's sequence
- a(491,831) = 138,498
- Square (n²)
- 19,181,696,004
- Cube (n³)
- 2,656,626,533,161,992
- Divisor count
- 16
- σ(n) — sum of divisors
- 284,256
- φ(n) — Euler's totient
- 44,960
- Sum of prime factors
- 609
Primality
Prime factorization: 2 × 3 × 41 × 563
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,498 = [372; (6, 1, 1, 8, 1, 1, 6, 744)]
Period length 8 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-eight thousand four hundred ninety-eight
- Ordinal
- 138498th
- Binary
- 100001110100000010
- Octal
- 416402
- Hexadecimal
- 0x21D02
- Base64
- Ah0C
- One's complement
- 4,294,828,797 (32-bit)
- Scientific notation
- 1.38498 × 10⁵
- As a duration
- 138,498 s = 1 day, 14 hours, 28 minutes, 18 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρληυϟηʹ
- Mayan (base 20)
- 𝋱·𝋦·𝋤·𝋲
- Chinese
- 一十三萬八千四百九十八
- Chinese (financial)
- 壹拾參萬捌仟肆佰玖拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 138498, here are decompositions:
- 5 + 138493 = 138498
- 29 + 138469 = 138498
- 37 + 138461 = 138498
- 47 + 138451 = 138498
- 71 + 138427 = 138498
- 97 + 138401 = 138498
- 109 + 138389 = 138498
- 127 + 138371 = 138498
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 B4 82 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.29.2.
- Address
- 0.2.29.2
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.29.2
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 138,498 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 138498 first appears in π at position 10,301 of the decimal expansion (the 10,301ordinal-suffix:st 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°.