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28689165371116 = 22193718397554569
BaseRepresentation
bin1101000010111101101111…
…00000101100011011101100
310202120122202021002010112201
412201132313200230123230
512230020402313333431
6141003342015511244
76020503156031305
oct641366740543354
9122518667063481
1028689165371116
119161008a21918
12327419b528524
1313014b876b903
147127c4c9b7ac
1534b40eacd461
hex1a17b782c6ec

28689165371116 has 48 divisors (see below), whose sum is σ = 54279847535200. Its totient is φ = 13221575474688.

The previous prime is 28689165371089. The next prime is 28689165371129. The reversal of 28689165371116 is 61117356198682.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51455080 + ... + 52009648.

Almost surely, 228689165371116 is an apocalyptic number.

It is an amenable number.

28689165371116 is a deficient number, since it is larger than the sum of its proper divisors (25590682164084).

28689165371116 is a wasteful number, since it uses less digits than its factorization.

28689165371116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573026 (or 573024 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 64.

The spelling of 28689165371116 in words is "twenty-eight trillion, six hundred eighty-nine billion, one hundred sixty-five million, three hundred seventy-one thousand, one hundred sixteen".

Divisors: 1 2 4 19 37 38 74 76 148 703 1406 2812 18397 36794 73588 349543 554569 680689 699086 1109138 1361378 1398172 2218276 2722756 10536811 12933091 20519053 21073622 25866182 41038106 42147244 51732364 82076212 389862007 779724014 1559448028 10202405893 20404811786 40809623572 193845711967 377489018041 387691423934 754978036082 775382847868 1509956072164 7172291342779 14344582685558 28689165371116