Base | Representation |
---|---|
bin | 110110111010… |
… | …1011111111011 |
3 | 2000011211100000 |
4 | 1231311133323 |
5 | 24332332302 |
6 | 2505044043 |
7 | 466510050 |
oct | 155653773 |
9 | 60154300 |
10 | 28792827 |
11 | 15286528 |
12 | 9786623 |
13 | 5c7169b |
14 | 3b77027 |
15 | 27db31c |
hex | 1b757fb |
28792827 has 24 divisors (see below), whose sum is σ = 49294336. Its totient is φ = 16452072.
The previous prime is 28792823. The next prime is 28792837. The reversal of 28792827 is 72829782.
It is a happy number.
It is not a de Polignac number, because 28792827 - 22 = 28792823 is a prime.
It is not an unprimeable number, because it can be changed into a prime (28792823) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6763 + ... + 10164.
Almost surely, 228792827 is an apocalyptic number.
28792827 is a gapful number since it is divisible by the number (27) formed by its first and last digit.
28792827 is a deficient number, since it is larger than the sum of its proper divisors (20501509).
28792827 is an equidigital number, since it uses as much as digits as its factorization.
28792827 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16949 (or 16937 counting only the distinct ones).
The product of its digits is 225792, while the sum is 45.
The square root of 28792827 is about 5365.8947995651. The cubic root of 28792827 is about 306.4983229854.
The spelling of 28792827 in words is "twenty-eight million, seven hundred ninety-two thousand, eight hundred twenty-seven".
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