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28828365288 = 23313715715581
BaseRepresentation
bin11010110110010011…
…011111000111101000
32202102002122200200220
4122312103133013220
5433020030142123
621124335530040
72040252030132
oct326623370750
982362580626
1028828365288
1111253951588
125706689920
132945722818
1415769c0052
15b3ad42ce3
hex6b64df1e8

28828365288 has 64 divisors (see below), whose sum is σ = 72656205120. Its totient is φ = 9531532800.

The previous prime is 28828365287. The next prime is 28828365289. The reversal of 28828365288 is 88256382882.

It is an interprime number because it is at equal distance from previous prime (28828365287) and next prime (28828365289).

It is not an unprimeable number, because it can be changed into a prime (28828365287) 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, 5162658 + ... + 5168238.

It is an arithmetic number, because the mean of its divisors is an integer number (1135253205).

Almost surely, 228828365288 is an apocalyptic number.

It is an amenable number.

28828365288 is an abundant number, since it is smaller than the sum of its proper divisors (43827839832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28828365288 is a wasteful number, since it uses less digits than its factorization.

28828365288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7298 (or 7294 counting only the distinct ones).

The product of its digits is 23592960, while the sum is 60.

The spelling of 28828365288 in words is "twenty-eight billion, eight hundred twenty-eight million, three hundred sixty-five thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 137 274 411 548 822 1096 1571 1644 3142 3288 4713 5581 6284 9426 11162 12568 16743 18852 22324 33486 37704 44648 66972 133944 215227 430454 645681 764597 860908 1291362 1529194 1721816 2293791 2582724 3058388 4587582 5165448 6116776 8767751 9175164 17535502 18350328 26303253 35071004 52606506 70142008 105213012 210426024 1201181887 2402363774 3603545661 4804727548 7207091322 9609455096 14414182644 28828365288