Base | Representation |
---|---|
bin | 11010101001010011… |
… | …101011011101110100 |
3 | 2201211220100102220010 |
4 | 122221103223131310 |
5 | 432043214441202 |
6 | 21050550140220 |
7 | 2031663432330 |
oct | 325123533564 |
9 | 81756312803 |
10 | 28610312052 |
11 | 111518589a3 |
12 | 5665651670 |
13 | 290c4b723a |
14 | 1555a5c7c0 |
15 | b26b1e76c |
hex | 6a94eb774 |
28610312052 has 48 divisors (see below), whose sum is σ = 78755274752. Its totient is φ = 7910684640.
The previous prime is 28610312051. The next prime is 28610312113. The reversal of 28610312052 is 25021301682.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28610312051) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5490928 + ... + 5496135.
Almost surely, 228610312052 is an apocalyptic number.
It is an amenable number.
28610312052 is an abundant number, since it is smaller than the sum of its proper divisors (50144962700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28610312052 is a wasteful number, since it uses less digits than its factorization.
28610312052 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10987108 (or 10987106 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 30.
The spelling of 28610312052 in words is "twenty-eight billion, six hundred ten million, three hundred twelve thousand, fifty-two".
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