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28768846044 = 22316314707999
BaseRepresentation
bin11010110010110000…
…011100000011011100
32202020221122210122110
4122302300130003130
5432404311033134
621114412114020
72035630104501
oct326260340334
982227583573
1028768846044
1111223299924
1256aa765910
1329362b3633
14156cb294a8
15b359d77e9
hex6b2c1c0dc

28768846044 has 24 divisors (see below), whose sum is σ = 67539136000. Its totient is φ = 9530782704.

The previous prime is 28768846031. The next prime is 28768846061. The reversal of 28768846044 is 44064886782.

It is a happy number.

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, 7352044 + ... + 7355955.

Almost surely, 228768846044 is an apocalyptic number.

It is an amenable number.

28768846044 is an abundant number, since it is smaller than the sum of its proper divisors (38770289956).

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

28768846044 is a wasteful number, since it uses less digits than its factorization.

28768846044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14708169 (or 14708167 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 57.

The spelling of 28768846044 in words is "twenty-eight billion, seven hundred sixty-eight million, eight hundred forty-six thousand, forty-four".

Divisors: 1 2 3 4 6 12 163 326 489 652 978 1956 14707999 29415998 44123997 58831996 88247994 176495988 2397403837 4794807674 7192211511 9589615348 14384423022 28768846044