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28164906033 = 3112491734253
BaseRepresentation
bin11010001110110000…
…100101110000110001
32200200212020110200220
4122032300211300301
5430140203443113
620534435403253
72014644515445
oct321660456061
980625213626
1028164906033
1110a4339a850
125560453529
13286b138594
141512838825
15aec98c523
hex68ec25c31

28164906033 has 16 divisors (see below), whose sum is σ = 40969976256. Its totient is φ = 17068456640.

The previous prime is 28164906023. The next prime is 28164906079. The reversal of 28164906033 is 33060946182.

It is a cyclic number.

It is not a de Polignac number, because 28164906033 - 24 = 28164906017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28164906023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 805135 + ... + 839387.

It is an arithmetic number, because the mean of its divisors is an integer number (2560623516).

Almost surely, 228164906033 is an apocalyptic number.

It is an amenable number.

28164906033 is a deficient number, since it is larger than the sum of its proper divisors (12805070223).

28164906033 is a wasteful number, since it uses less digits than its factorization.

28164906033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59184.

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 28164906033 in words is "twenty-eight billion, one hundred sixty-four million, nine hundred six thousand, thirty-three".

Divisors: 1 3 11 33 24917 34253 74751 102759 274087 376783 822261 1130349 853482001 2560446003 9388302011 28164906033