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68001518152111 = 1193205327764459
BaseRepresentation
bin11110111011000110101100…
…10101010110100110101111
322220202212210201110001000111
433131203112111112212233
532403114102121331421
6400343244405440451
720215643004144265
oct1735432625264657
9286685721401014
1068001518152111
111a738311223505
127763196a10127
132bc3691b4bbbb
1412b1410882435
157cdd1ee4aee1
hex3dd8d65569af

68001518152111 has 8 divisors (see below), whose sum is σ = 68091671802960. Its totient is φ = 67911420036672.

The previous prime is 68001518152093. The next prime is 68001518152121. The reversal of 68001518152111 is 11125181510086.

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

It is a cyclic number.

It is not a de Polignac number, because 68001518152111 - 221 = 68001516054959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68001518152121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11433001 + ... + 16331458.

It is an arithmetic number, because the mean of its divisors is an integer number (8511458975370).

Almost surely, 268001518152111 is an apocalyptic number.

68001518152111 is a deficient number, since it is larger than the sum of its proper divisors (90153650849).

68001518152111 is a wasteful number, since it uses less digits than its factorization.

68001518152111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27767705.

The product of its (nonzero) digits is 19200, while the sum is 40.

Adding to 68001518152111 its reverse (11125181510086), we get a palindrome (79126699662197).

The spelling of 68001518152111 in words is "sixty-eight trillion, one billion, five hundred eighteen million, one hundred fifty-two thousand, one hundred eleven".

Divisors: 1 1193 2053 2449229 27764459 33122999587 57000434327 68001518152111