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10191962028 = 223849330169
BaseRepresentation
bin10010111110111110…
…01111111110101100
3222022021222022112010
421133133033332230
5131333120241103
64403201041220
7510365151003
oct113737177654
928267868463
1010191962028
114360107a16
121b85326210
13c656bbc81
146c9851c3a
153e9b7a903
hex25f7cffac

10191962028 has 12 divisors (see below), whose sum is σ = 23781244760. Its totient is φ = 3397320672.

The previous prime is 10191962023. The next prime is 10191962029. The reversal of 10191962028 is 82026919101.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (10191962023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424665073 + ... + 424665096.

Almost surely, 210191962028 is an apocalyptic number.

It is an amenable number.

10191962028 is an abundant number, since it is smaller than the sum of its proper divisors (13589282732).

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

10191962028 is a wasteful number, since it uses less digits than its factorization.

10191962028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849330176 (or 849330174 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 39.

The spelling of 10191962028 in words is "ten billion, one hundred ninety-one million, nine hundred sixty-two thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 849330169 1698660338 2547990507 3397320676 5095981014 10191962028