Base | Representation |
---|---|
bin | 11010001000011010… |
… | …001010100000001111 |
3 | 2200102102202120101200 |
4 | 122020122022200033 |
5 | 424430420121134 |
6 | 20520112040543 |
7 | 2012212105155 |
oct | 321032124017 |
9 | 80372676350 |
10 | 28058363919 |
11 | 10999240113 |
12 | 5530833153 |
13 | 2852044101 |
14 | 15026233d5 |
15 | ae3444499 |
hex | 68868a80f |
28058363919 has 12 divisors (see below), whose sum is σ = 41193154392. Its totient is φ = 18398926800.
The previous prime is 28058363909. The next prime is 28058363923. The reversal of 28058363919 is 91936385082.
28058363919 is a `hidden beast` number, since 28 + 0 + 583 + 6 + 39 + 1 + 9 = 666.
It is not a de Polignac number, because 28058363919 - 215 = 28058331151 is a prime.
It is a super-2 number, since 2×280583639192 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28058363909) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25553517 + ... + 25554614.
It is an arithmetic number, because the mean of its divisors is an integer number (3432762866).
Almost surely, 228058363919 is an apocalyptic number.
28058363919 is a deficient number, since it is larger than the sum of its proper divisors (13134790473).
28058363919 is a wasteful number, since it uses less digits than its factorization.
28058363919 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51108198 (or 51108195 counting only the distinct ones).
The product of its (nonzero) digits is 2799360, while the sum is 54.
The spelling of 28058363919 in words is "twenty-eight billion, fifty-eight million, three hundred sixty-three thousand, nine hundred nineteen".
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