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9974189892 = 223831182491
BaseRepresentation
bin10010100101000001…
…00000111101000100
3221202010012100022110
421102200200331010
5130411343034032
64325421301020
7502112133552
oct112240407504
927663170273
109974189892
114259196547
121b24404770
13c2c551614
146a8964bd2
153d59b07cc
hex252820f44

9974189892 has 12 divisors (see below), whose sum is σ = 23273109776. Its totient is φ = 3324729960.

The previous prime is 9974189881. The next prime is 9974189903. The reversal of 9974189892 is 2989814799.

It is an interprime number because it is at equal distance from previous prime (9974189881) and next prime (9974189903).

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415591234 + ... + 415591257.

Almost surely, 29974189892 is an apocalyptic number.

It is an amenable number.

9974189892 is an abundant number, since it is smaller than the sum of its proper divisors (13298919884).

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

9974189892 is a wasteful number, since it uses less digits than its factorization.

9974189892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831182498 (or 831182496 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 66.

The square root of 9974189892 is about 99870.8660821563. The cubic root of 9974189892 is about 2152.5795533384.

The spelling of 9974189892 in words is "nine billion, nine hundred seventy-four million, one hundred eighty-nine thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 12 831182491 1662364982 2493547473 3324729964 4987094946 9974189892