Base | Representation |
---|---|
bin | 11010101001100000… |
… | …010001100000001011 |
3 | 2201212010120011201220 |
4 | 122221200101200023 |
5 | 432100041113304 |
6 | 21051145013123 |
7 | 2032033462635 |
oct | 325140214013 |
9 | 81763504656 |
10 | 28613613579 |
11 | 11153703431 |
12 | 56667841a3 |
13 | 29100a1bc5 |
14 | 155627ba55 |
15 | b27072ad9 |
hex | 6a981180b |
28613613579 has 16 divisors (see below), whose sum is σ = 38600059680. Its totient is φ = 18852019200.
The previous prime is 28613613577. The next prime is 28613613607. The reversal of 28613613579 is 97531631682.
It is not a de Polignac number, because 28613613579 - 21 = 28613613577 is a prime.
It is not an unprimeable number, because it can be changed into a prime (28613613577) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133857 + ... + 274125.
It is an arithmetic number, because the mean of its divisors is an integer number (2412503730).
Almost surely, 228613613579 is an apocalyptic number.
28613613579 is a deficient number, since it is larger than the sum of its proper divisors (9986446101).
28613613579 is a wasteful number, since it uses less digits than its factorization.
28613613579 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 141070.
The product of its digits is 1632960, while the sum is 51.
The spelling of 28613613579 in words is "twenty-eight billion, six hundred thirteen million, six hundred thirteen thousand, five hundred seventy-nine".
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