Base | Representation |
---|---|
bin | 110110000111… |
… | …0111010010001 |
3 | 1222101110220222 |
4 | 1230032322101 |
5 | 24230411000 |
6 | 2452042425 |
7 | 463110011 |
oct | 154167221 |
9 | 58343828 |
10 | 28372625 |
11 | 15019856 |
12 | 9603415 |
13 | 5b55348 |
14 | 3aa7c41 |
15 | 2756a85 |
hex | 1b0ee91 |
28372625 has 16 divisors (see below), whose sum is σ = 35999184. Its totient is φ = 22326000.
The previous prime is 28372621. The next prime is 28372627. The reversal of 28372625 is 52627382.
The cubic root of 28372625 is 305.
It is a perfect power (a cube), and thus also a powerful number.
It can be written as a sum of positive squares in 8 ways, for example, as 25331089 + 3041536 = 5033^2 + 1744^2 .
It is not a de Polignac number, because 28372625 - 22 = 28372621 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (28372621) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465095 + ... + 465155.
It is an arithmetic number, because the mean of its divisors is an integer number (2249949).
Almost surely, 228372625 is an apocalyptic number.
28372625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
28372625 is a deficient number, since it is larger than the sum of its proper divisors (7626559).
28372625 is an frugal number, since it uses more digits than its factorization.
28372625 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 198 (or 66 counting only the distinct ones).
The product of its digits is 40320, while the sum is 35.
The square root of 28372625 is about 5326.5960049548.
The spelling of 28372625 in words is "twenty-eight million, three hundred seventy-two thousand, six hundred twenty-five".
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