Base | Representation |
---|---|
bin | 110110000010… |
… | …0110000100011 |
3 | 1222022100212220 |
4 | 1230010300203 |
5 | 24223043133 |
6 | 2451122123 |
7 | 462544536 |
oct | 154046043 |
9 | 58270786 |
10 | 28331043 |
11 | 14aa0594 |
12 | 95a3343 |
13 | 5b3c440 |
14 | 3a96a1d |
15 | 27495b3 |
hex | 1b04c23 |
28331043 has 16 divisors (see below), whose sum is σ = 40776960. Its totient is φ = 17393184.
The previous prime is 28331029. The next prime is 28331047. The reversal of 28331043 is 34013382.
It is not a de Polignac number, because 28331043 - 26 = 28330979 is a prime.
It is not an unprimeable number, because it can be changed into a prime (28331047) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28330 + ... + 29312.
It is an arithmetic number, because the mean of its divisors is an integer number (2548560).
Almost surely, 228331043 is an apocalyptic number.
28331043 is a deficient number, since it is larger than the sum of its proper divisors (12445917).
28331043 is a wasteful number, since it uses less digits than its factorization.
28331043 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1738.
The product of its (nonzero) digits is 1728, while the sum is 24.
The square root of 28331043 is about 5322.6913305207. The cubic root of 28331043 is about 304.8509277782.
The spelling of 28331043 in words is "twenty-eight million, three hundred thirty-one thousand, forty-three".
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