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18404300325 = 352245390671
BaseRepresentation
bin10001001000111110…
…110101011000100101
31202111121221022210210
4101020332311120211
5300143000102300
612242124010033
71221034654155
oct211076653045
952447838723
1018404300325
117894825264
123697690919
131973c19348
14c683d0765
1572ab1b050
hex448fb5625

18404300325 has 12 divisors (see below), whose sum is σ = 30428443328. Its totient is φ = 9815626800.

The previous prime is 18404300221. The next prime is 18404300329. The reversal of 18404300325 is 52300340481.

It is not a de Polignac number, because 18404300325 - 210 = 18404299301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18404300292 and 18404300301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18404300329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122695261 + ... + 122695410.

Almost surely, 218404300325 is an apocalyptic number.

18404300325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18404300325 is a deficient number, since it is larger than the sum of its proper divisors (12024143003).

18404300325 is a wasteful number, since it uses less digits than its factorization.

18404300325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245390684 (or 245390679 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 18404300325 in words is "eighteen billion, four hundred four million, three hundred thousand, three hundred twenty-five".

Divisors: 1 3 5 15 25 75 245390671 736172013 1226953355 3680860065 6134766775 18404300325