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28500904094 = 2138641126859
BaseRepresentation
bin11010100010110010…
…010100100010011110
32201120021110221101112
4122202302110202132
5431332212412334
621032041142022
72026164454565
oct324262244236
981507427345
1028500904094
11110a60210a3
125634a8a912
1328c292b4c0
1415452dcbdc
15b1c20c4ce
hex6a2c9489e

28500904094 has 16 divisors (see below), whose sum is σ = 46045613040. Its totient is φ = 13152637440.

The previous prime is 28500904067. The next prime is 28500904099. The reversal of 28500904094 is 49040900582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28500904099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161237 + ... + 288095.

It is an arithmetic number, because the mean of its divisors is an integer number (2877850815).

Almost surely, 228500904094 is an apocalyptic number.

28500904094 is a deficient number, since it is larger than the sum of its proper divisors (17544708946).

28500904094 is a wasteful number, since it uses less digits than its factorization.

28500904094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135515.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 28500904094 in words is "twenty-eight billion, five hundred million, nine hundred four thousand, ninety-four".

Divisors: 1 2 13 26 8641 17282 112333 126859 224666 253718 1649167 3298334 1096188619 2192377238 14250452047 28500904094