Base | Representation |
---|---|
bin | 11010110110000110… |
… | …010011010000101001 |
3 | 2202101212011002100100 |
4 | 122312012103100221 |
5 | 433013134040331 |
6 | 21124133500013 |
7 | 2040210453051 |
oct | 326606232051 |
9 | 82355132310 |
10 | 28824908841 |
11 | 11251a00713 |
12 | 57054a1609 |
13 | 2944ab24a1 |
14 | 1576360561 |
15 | b3a8adae6 |
hex | 6b6193429 |
28824908841 has 27 divisors (see below), whose sum is σ = 44242513861. Its totient is φ = 18080784384.
The previous prime is 28824908821. The next prime is 28824908869. The reversal of 28824908841 is 14880942882.
The square root of 28824908841 is 169779.
It is a perfect power (a square), and thus also a powerful number.
28824908841 is a `hidden beast` number, since 288 + 249 + 0 + 88 + 41 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 970634025 + 27854274816 = 31155^2 + 166896^2 .
It is not a de Polignac number, because 28824908841 - 25 = 28824908809 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (28824908821) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8657065 + ... + 8660393.
Almost surely, 228824908841 is an apocalyptic number.
28824908841 is the 169779-th square number.
28824908841 is the 84890-th centered octagonal number.
It is an amenable number.
28824908841 is a deficient number, since it is larger than the sum of its proper divisors (15417605020).
28824908841 is an frugal number, since it uses more digits than its factorization.
28824908841 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6698 (or 3349 counting only the distinct ones).
The product of its (nonzero) digits is 2359296, while the sum is 54.
The spelling of 28824908841 in words is "twenty-eight billion, eight hundred twenty-four million, nine hundred eight thousand, eight hundred forty-one".
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