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28767142074 = 2311435865789
BaseRepresentation
bin11010110010101001…
…111100000010111010
32202020211110020020110
4122302221330002322
5432403342021244
621114311405150
72035606446606
oct326251740272
982224406213
1028767142074
1111222335690
1256aa0837b6
132935b37b78
14156c804506
15b3579c9b9
hex6b2a7c0ba

28767142074 has 16 divisors (see below), whose sum is σ = 62764673760. Its totient is φ = 8717315760.

The previous prime is 28767142067. The next prime is 28767142087. The reversal of 28767142074 is 47024176782.

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, 217932829 + ... + 217932960.

It is an arithmetic number, because the mean of its divisors is an integer number (3922792110).

Almost surely, 228767142074 is an apocalyptic number.

28767142074 is an abundant number, since it is smaller than the sum of its proper divisors (33997531686).

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

28767142074 is a wasteful number, since it uses less digits than its factorization.

28767142074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435865805.

The product of its (nonzero) digits is 1053696, while the sum is 48.

The spelling of 28767142074 in words is "twenty-eight billion, seven hundred sixty-seven million, one hundred forty-two thousand, seventy-four".

Divisors: 1 2 3 6 11 22 33 66 435865789 871731578 1307597367 2615194734 4794523679 9589047358 14383571037 28767142074