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28114525321 = 191907775937
BaseRepresentation
bin11010001011110000…
…011001110010001001
32200120100102212100121
4122023300121302021
5430034304302241
620525435503241
72013463344061
oct321360316211
980510385317
1028114525321
1110a17a09aa3
1255475b7b21
132860878acc
141509c823a1
15ae8339ad1
hex68bc19c89

28114525321 has 8 divisors (see below), whose sum is σ = 29609794080. Its totient is φ = 26620812288.

The previous prime is 28114525297. The next prime is 28114525349. The reversal of 28114525321 is 12352541182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28114525321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28114525121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351736 + ... + 424201.

It is an arithmetic number, because the mean of its divisors is an integer number (3701224260).

Almost surely, 228114525321 is an apocalyptic number.

It is an amenable number.

28114525321 is a deficient number, since it is larger than the sum of its proper divisors (1495268759).

28114525321 is a wasteful number, since it uses less digits than its factorization.

28114525321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777863.

The product of its digits is 19200, while the sum is 34.

The spelling of 28114525321 in words is "twenty-eight billion, one hundred fourteen million, five hundred twenty-five thousand, three hundred twenty-one".

Divisors: 1 19 1907 36233 775937 14742803 1479711859 28114525321