105,490
105,490 is a composite number, even.
105,490 (one hundred five thousand four hundred ninety) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2 × 5 × 7 × 11 × 137. Its proper divisors sum to 132,974, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x19C12.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 94,501
- Recamán's sequence
- a(43,399) = 105,490
- Square (n²)
- 11,128,140,100
- Cube (n³)
- 1,173,907,499,149,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 238,464
- φ(n) — Euler's totient
- 32,640
- Sum of prime factors
- 162
Primality
Prime factorization: 2 × 5 × 7 × 11 × 137
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√105,490 = [324; (1, 3, 1, 4, 2, 1, 4, 2, 1, 7, 3, 42, 1, 71, 5, 46, 5, 71, 1, 42, 3, 7, 1, 2, …)]
Period length 32 — the block in parentheses repeats forever.
Representations
- In words
- one hundred five thousand four hundred ninety
- Ordinal
- 105490th
- Binary
- 11001110000010010
- Octal
- 316022
- Hexadecimal
- 0x19C12
- Base64
- AZwS
- One's complement
- 4,294,861,805 (32-bit)
- Scientific notation
- 1.0549 × 10⁵
- As a duration
- 105,490 s = 1 day, 5 hours, 18 minutes, 10 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋
- Egyptian hieroglyphic
- 𓆐𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρευϟʹ
- Mayan (base 20)
- 𝋭·𝋣·𝋮·𝋪
- Chinese
- 一十萬五千四百九十
- Chinese (financial)
- 壹拾萬伍仟肆佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 105490, here are decompositions:
- 23 + 105467 = 105490
- 41 + 105449 = 105490
- 53 + 105437 = 105490
- 83 + 105407 = 105490
- 89 + 105401 = 105490
- 101 + 105389 = 105490
- 131 + 105359 = 105490
- 149 + 105341 = 105490
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.156.18.
- Address
- 0.1.156.18
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.156.18
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 105,490 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 105490 first appears in π at position 291,962 of the decimal expansion (the 291,962ordinal-suffix:nd 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.