Base | Representation |
---|---|
bin | 11010111010100110… |
… | …010110000001110101 |
3 | 2202121010020022222000 |
4 | 122322212112001311 |
5 | 433142001331103 |
6 | 21135432125513 |
7 | 2042115332262 |
oct | 327246260165 |
9 | 82533208860 |
10 | 28900417653 |
11 | 11290594598 |
12 | 5726836899 |
13 | 295762c563 |
14 | 15823b8269 |
15 | b42326aa3 |
hex | 6ba996075 |
28900417653 has 16 divisors (see below), whose sum is σ = 43972608960. Its totient is φ = 18746216208.
The previous prime is 28900417621. The next prime is 28900417657. The reversal of 28900417653 is 35671400982.
It is not a de Polignac number, because 28900417653 - 25 = 28900417621 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 28900417599 and 28900417608.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28900417657) 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, 14463675 + ... + 14465672.
It is an arithmetic number, because the mean of its divisors is an integer number (2748288060).
It is a 1-persistent number, because it is pandigital, but 2⋅28900417653 = 57800835306 is not.
Almost surely, 228900417653 is an apocalyptic number.
It is an amenable number.
28900417653 is a deficient number, since it is larger than the sum of its proper divisors (15072191307).
28900417653 is a wasteful number, since it uses less digits than its factorization.
28900417653 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28929393 (or 28929387 counting only the distinct ones).
The product of its (nonzero) digits is 362880, while the sum is 45.
The spelling of 28900417653 in words is "twenty-eight billion, nine hundred million, four hundred seventeen thousand, six hundred fifty-three".
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