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18423698962 = 228573322397
BaseRepresentation
bin10001001010001000…
…110101011000010010
31202112222102212201211
4101022020311120102
5300212431331322
612244055450334
71221361600024
oct211210653022
952488385654
1018423698962
1178a4774799
1236a20869aa
131977c4bb26
14c6ac00014
1572c69db77
hex44a235612

18423698962 has 8 divisors (see below), whose sum is σ = 27636601356. Its totient is φ = 9211498512.

The previous prime is 18423698921. The next prime is 18423698971. The reversal of 18423698962 is 26989632481.

It can be written as a sum of positive squares in 2 ways, for example, as 12146464521 + 6277234441 = 110211^2 + 79229^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 18423698897 and 18423698906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104053 + ... + 218344.

Almost surely, 218423698962 is an apocalyptic number.

18423698962 is a deficient number, since it is larger than the sum of its proper divisors (9212902394).

18423698962 is a wasteful number, since it uses less digits than its factorization.

18423698962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350972.

The product of its digits is 8957952, while the sum is 58.

The spelling of 18423698962 in words is "eighteen billion, four hundred twenty-three million, six hundred ninety-eight thousand, nine hundred sixty-two".

Divisors: 1 2 28573 57146 322397 644794 9211849481 18423698962