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28789659104 = 2519306715439
BaseRepresentation
bin11010110011111111…
…110101010111100000
32202022101211012210112
4122303333311113200
5432430123042404
621120434150452
72036302031123
oct326377652740
982271735715
1028789659104
1111234014aa8
1256b5722428
13293a6bcb5b
1415717c63ba
15b3774956e
hex6b3ff55e0

28789659104 has 48 divisors (see below), whose sum is σ = 59686099200. Its totient is φ = 13631877504.

The previous prime is 28789659077. The next prime is 28789659131. The reversal of 28789659104 is 40195698782.

It is an interprime number because it is at equal distance from previous prime (28789659077) and next prime (28789659131).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1857017 + ... + 1872455.

It is an arithmetic number, because the mean of its divisors is an integer number (1243460400).

Almost surely, 228789659104 is an apocalyptic number.

It is an amenable number.

28789659104 is an abundant number, since it is smaller than the sum of its proper divisors (30896440096).

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

28789659104 is a wasteful number, since it uses less digits than its factorization.

28789659104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18535 (or 18527 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 28789659104 in words is "twenty-eight billion, seven hundred eighty-nine million, six hundred fifty-nine thousand, one hundred four".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 3067 6134 12268 15439 24536 30878 49072 58273 61756 98144 116546 123512 233092 247024 293341 466184 494048 586682 932368 1173364 1864736 2346728 4693456 9386912 47351413 94702826 189405652 378811304 757622608 899676847 1515245216 1799353694 3598707388 7197414776 14394829552 28789659104