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68864168204 = 221311393116239
BaseRepresentation
bin100000000100010011…
…1111101000100001100
320120202021002012120022
41000020213331010030
52112013211340304
651345154041312
74655342525456
oct1001047750414
9216667065508
1068864168204
1127229033907
121141a579238
13665602c430
143493c2b2d6
151bd0a4cebe
hex10089fd10c

68864168204 has 24 divisors (see below), whose sum is σ = 129794978880. Its totient is φ = 31780399104.

The previous prime is 68864168203. The next prime is 68864168207. The reversal of 68864168204 is 40286146886.

It is not an unprimeable number, because it can be changed into a prime (68864168203) 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, 534317 + ... + 650555.

It is an arithmetic number, because the mean of its divisors is an integer number (5408124120).

Almost surely, 268864168204 is an apocalyptic number.

It is an amenable number.

68864168204 is a deficient number, since it is larger than the sum of its proper divisors (60930810676).

68864168204 is a wasteful number, since it uses less digits than its factorization.

68864168204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127649 (or 127647 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 53.

The spelling of 68864168204 in words is "sixty-eight billion, eight hundred sixty-four million, one hundred sixty-eight thousand, two hundred four".

Divisors: 1 2 4 13 26 52 11393 22786 45572 116239 148109 232478 296218 464956 592436 1511107 3022214 6044428 1324310927 2648621854 5297243708 17216042051 34432084102 68864168204