Base | Representation |
---|---|
bin | 110111001000… |
… | …1001001000100 |
3 | 2000101120122112 |
4 | 1232101021010 |
5 | 24344443202 |
6 | 2511320152 |
7 | 500461130 |
oct | 156211104 |
9 | 60346575 |
10 | 28906052 |
11 | 153535aa |
12 | 9820058 |
13 | 5cb1096 |
14 | 3ba63c0 |
15 | 280eb52 |
hex | 1b91244 |
28906052 has 24 divisors (see below), whose sum is σ = 61213824. Its totient is φ = 11659392.
The previous prime is 28906027. The next prime is 28906057. The reversal of 28906052 is 25060982.
It is not an unprimeable number, because it can be changed into a prime (28906057) 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, 29888 + ... + 30839.
It is an arithmetic number, because the mean of its divisors is an integer number (2550576).
Almost surely, 228906052 is an apocalyptic number.
It is an amenable number.
28906052 is an abundant number, since it is smaller than the sum of its proper divisors (32307772).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28906052 is a wasteful number, since it uses less digits than its factorization.
28906052 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 60755 (or 60753 counting only the distinct ones).
The product of its (nonzero) digits is 8640, while the sum is 32.
The square root of 28906052 is about 5376.4348782441. The cubic root of 28906052 is about 306.8995558185.
The spelling of 28906052 in words is "twenty-eight million, nine hundred six thousand, fifty-two".
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