Base | Representation |
---|---|
bin | 110111010011… |
… | …0111101011001 |
3 | 2000120010020100 |
4 | 1232212331121 |
5 | 24410323132 |
6 | 2513250013 |
7 | 501312513 |
oct | 156467531 |
9 | 60503210 |
10 | 28995417 |
11 | 15404760 |
12 | 9863909 |
13 | 6012969 |
14 | 3bcabb3 |
15 | 282b37c |
hex | 1ba6f59 |
28995417 has 24 divisors (see below), whose sum is σ = 46126080. Its totient is φ = 17405280.
The previous prime is 28995413. The next prime is 28995419. The reversal of 28995417 is 71459982.
It is not a de Polignac number, because 28995417 - 22 = 28995413 is a prime.
It is not an unprimeable number, because it can be changed into a prime (28995413) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9448 + ... + 12134.
It is an arithmetic number, because the mean of its divisors is an integer number (1921920).
Almost surely, 228995417 is an apocalyptic number.
It is an amenable number.
28995417 is a deficient number, since it is larger than the sum of its proper divisors (17130663).
28995417 is a wasteful number, since it uses less digits than its factorization.
28995417 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2813 (or 2810 counting only the distinct ones).
The product of its digits is 181440, while the sum is 45.
The square root of 28995417 is about 5384.7392694540. The cubic root of 28995417 is about 307.2154973159.
The spelling of 28995417 in words is "twenty-eight million, nine hundred ninety-five thousand, four hundred seventeen".
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