Base | Representation |
---|---|
bin | 110111001011… |
… | …1001011000000 |
3 | 2000102211112100 |
4 | 1232113023000 |
5 | 24401241002 |
6 | 2512030400 |
7 | 500623134 |
oct | 156271300 |
9 | 60384470 |
10 | 28930752 |
11 | 15370114 |
12 | 9832400 |
13 | 5cbc3b6 |
14 | 3bb13c4 |
15 | 281711c |
hex | 1b972c0 |
28930752 has 42 divisors (see below), whose sum is σ = 82926428. Its totient is φ = 9643392.
The previous prime is 28930723. The next prime is 28930763. The reversal of 28930752 is 25703982.
It is a happy number.
It is a super-2 number, since 2×289307522 = 1673976822571008, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24538 + ... + 25689.
Almost surely, 228930752 is an apocalyptic number.
It is an amenable number.
28930752 is an abundant number, since it is smaller than the sum of its proper divisors (53995676).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28930752 is a wasteful number, since it uses less digits than its factorization.
28930752 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50245 (or 50232 counting only the distinct ones).
The product of its (nonzero) digits is 30240, while the sum is 36.
The square root of 28930752 is about 5378.7314489571. The cubic root of 28930752 is about 306.9869453718.
The spelling of 28930752 in words is "twenty-eight million, nine hundred thirty thousand, seven hundred fifty-two".
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