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18425107372 = 227658039549
BaseRepresentation
bin10001001010001110…
…001101001110101100
31202120002002102201011
4101022032031032230
5300213311413442
612244145555004
71221406554130
oct211216151654
952502072634
1018425107372
1178a5546971
1236a2645a64
131978322bc9
14c6b0893c0
1572c87b117
hex44a38d3ac

18425107372 has 12 divisors (see below), whose sum is σ = 36850214800. Its totient is φ = 7896474576.

The previous prime is 18425107357. The next prime is 18425107373. The reversal of 18425107372 is 27370152481.

18425107372 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (18425107373) 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, 329019747 + ... + 329019802.

Almost surely, 218425107372 is an apocalyptic number.

It is an amenable number.

18425107372 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18425107372 is a wasteful number, since it uses less digits than its factorization.

18425107372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658039560 (or 658039558 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 18425107372 in words is "eighteen billion, four hundred twenty-five million, one hundred seven thousand, three hundred seventy-two".

Divisors: 1 2 4 7 14 28 658039549 1316079098 2632158196 4606276843 9212553686 18425107372