Base | Representation |
---|---|
bin | 110111001000… |
… | …0001101101100 |
3 | 2000101101102210 |
4 | 1232100031230 |
5 | 24344333002 |
6 | 2511250420 |
7 | 500444061 |
oct | 156201554 |
9 | 60341383 |
10 | 28902252 |
11 | 15350765 |
12 | 9819a10 |
13 | 5cac432 |
14 | 3ba4c68 |
15 | 280d96c |
hex | 1b9036c |
28902252 has 24 divisors (see below), whose sum is σ = 67734576. Its totient is φ = 9591808.
The previous prime is 28902239. The next prime is 28902257. The reversal of 28902252 is 25220982.
It is not an unprimeable number, because it can be changed into a prime (28902257) 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, 2373 + ... + 7964.
It is an arithmetic number, because the mean of its divisors is an integer number (2822274).
Almost surely, 228902252 is an apocalyptic number.
It is an amenable number.
28902252 is an abundant number, since it is smaller than the sum of its proper divisors (38832324).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28902252 is a wasteful number, since it uses less digits than its factorization.
28902252 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10577 (or 10575 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 30.
The square root of 28902252 is about 5376.0814725969. The cubic root of 28902252 is about 306.8861068538.
The spelling of 28902252 in words is "twenty-eight million, nine hundred two thousand, two hundred fifty-two".
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