Base | Representation |
---|---|
bin | 110111001000… |
… | …0010101100010 |
3 | 2000101102010101 |
4 | 1232100111202 |
5 | 24344342004 |
6 | 2511253014 |
7 | 500445406 |
oct | 156202542 |
9 | 60342111 |
10 | 28902754 |
11 | 15351081 |
12 | 981a16a |
13 | 5cac72a |
14 | 3ba5106 |
15 | 280dba4 |
hex | 1b90562 |
28902754 has 8 divisors (see below), whose sum is σ = 45904428. Its totient is φ = 13601280.
The previous prime is 28902749. The next prime is 28902793. The reversal of 28902754 is 45720982.
It can be written as a sum of positive squares in 2 ways, for example, as 23961025 + 4941729 = 4895^2 + 2223^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425007 + ... + 425074.
Almost surely, 228902754 is an apocalyptic number.
28902754 is a deficient number, since it is larger than the sum of its proper divisors (17001674).
28902754 is a wasteful number, since it uses less digits than its factorization.
28902754 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 850100.
The product of its (nonzero) digits is 40320, while the sum is 37.
The square root of 28902754 is about 5376.1281606747. The cubic root of 28902754 is about 306.8878836004.
The spelling of 28902754 in words is "twenty-eight million, nine hundred two thousand, seven hundred fifty-four".
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