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18860147343 = 322575981353
BaseRepresentation
bin10001100100001001…
…110000001010001111
31210200101200202100200
4101210021300022033
5302111144203333
612355250224543
71235241415212
oct214411601217
953611622320
1018860147343
117aa9074934
1237a4285153
131a174b24cb
14cacb71779
15755b61c13
hex46427028f

18860147343 has 12 divisors (see below), whose sum is σ = 27243827520. Its totient is φ = 12572788896.

The previous prime is 18860147321. The next prime is 18860147347. The reversal of 18860147343 is 34374106881.

18860147343 is a `hidden beast` number, since 1 + 8 + 8 + 601 + 4 + 7 + 34 + 3 = 666.

It is not a de Polignac number, because 18860147343 - 217 = 18860016271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18860147347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191155 + ... + 272507.

It is an arithmetic number, because the mean of its divisors is an integer number (2270318960).

Almost surely, 218860147343 is an apocalyptic number.

18860147343 is a deficient number, since it is larger than the sum of its proper divisors (8383680177).

18860147343 is a wasteful number, since it uses less digits than its factorization.

18860147343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107118 (or 107115 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 18860147343 in words is "eighteen billion, eight hundred sixty million, one hundred forty-seven thousand, three hundred forty-three".

Divisors: 1 3 9 25759 77277 81353 231831 244059 732177 2095571927 6286715781 18860147343