Base | Representation |
---|---|
bin | 11010100110001110… |
… | …101011111010000100 |
3 | 2201201022011211100210 |
4 | 122212032223322010 |
5 | 431442004441432 |
6 | 21041503235420 |
7 | 2030465462631 |
oct | 324616537204 |
9 | 81638154323 |
10 | 28558671492 |
11 | 1112569764a |
12 | 56502a8b70 |
13 | 29018a61b0 |
14 | 154cc59188 |
15 | b2231d8cc |
hex | 6a63abe84 |
28558671492 has 24 divisors (see below), whose sum is σ = 71762815936. Its totient is φ = 8787283488.
The previous prime is 28558671451. The next prime is 28558671497. The reversal of 28558671492 is 29417685582.
It is not an unprimeable number, because it can be changed into a prime (28558671497) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91534048 + ... + 91534359.
Almost surely, 228558671492 is an apocalyptic number.
It is an amenable number.
28558671492 is an abundant number, since it is smaller than the sum of its proper divisors (43204144444).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28558671492 is a wasteful number, since it uses less digits than its factorization.
28558671492 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 183068427 (or 183068425 counting only the distinct ones).
The product of its digits is 9676800, while the sum is 57.
The spelling of 28558671492 in words is "twenty-eight billion, five hundred fifty-eight million, six hundred seventy-one thousand, four hundred ninety-two".
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