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28675464570 = 2325993132083
BaseRepresentation
bin11010101101001100…
…001101110101111010
32202000102221112100100
4122231030031311322
5432211404331240
621101234420230
72033414266344
oct325514156572
982012845310
1028675464570
1111185608a55
125683431676
13291cb4951c
14156057c294
15b2c6dde30
hex6ad30dd7a

28675464570 has 48 divisors (see below), whose sum is σ = 74566039392. Its totient is φ = 7645782240.

The previous prime is 28675464511. The next prime is 28675464577. The reversal of 28675464570 is 7546457682.

It is a happy number.

28675464570 is a `hidden beast` number, since 2 + 8 + 6 + 7 + 5 + 4 + 64 + 570 = 666.

It is not an unprimeable number, because it can be changed into a prime (28675464577) 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, 877749 + ... + 909831.

It is an arithmetic number, because the mean of its divisors is an integer number (1553459154).

Almost surely, 228675464570 is an apocalyptic number.

28675464570 is an abundant number, since it is smaller than the sum of its proper divisors (45890574822).

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

28675464570 is a wasteful number, since it uses less digits than its factorization.

28675464570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42027 (or 42024 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 54.

The spelling of 28675464570 in words is "twenty-eight billion, six hundred seventy-five million, four hundred sixty-four thousand, five hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 9931 19862 29793 32083 49655 59586 64166 89379 96249 99310 148965 160415 178758 192498 288747 297930 320830 446895 481245 577494 893790 962490 1443735 2887470 318616273 637232546 955848819 1593081365 1911697638 2867546457 3186162730 4779244095 5735092914 9558488190 14337732285 28675464570