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68868147204 = 22326432975123
BaseRepresentation
bin100000000100011011…
…1001000100000000100
320120202112120100201200
41000020313020200010
52112020221202304
651345415222500
74655421410163
oct1001067104004
9216675510650
1068868147204
112723030133a
121141b977a30
136656ac357c
1434945853da
151bd1086e39
hex1008dc8804

68868147204 has 36 divisors (see below), whose sum is σ = 174354166896. Its totient is φ = 22920339888.

The previous prime is 68868147191. The next prime is 68868147209. The reversal of 68868147204 is 40274186886.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (68868147209) 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, 1464414 + ... + 1510709.

Almost surely, 268868147204 is an apocalyptic number.

It is an amenable number.

68868147204 is an abundant number, since it is smaller than the sum of its proper divisors (105486019692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68868147204 is a wasteful number, since it uses less digits than its factorization.

68868147204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975776 (or 2975771 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 68868147204 in words is "sixty-eight billion, eight hundred sixty-eight million, one hundred forty-seven thousand, two hundred four".

Divisors: 1 2 3 4 6 9 12 18 36 643 1286 1929 2572 3858 5787 7716 11574 23148 2975123 5950246 8925369 11900492 17850738 26776107 35701476 53552214 107104428 1913004089 3826008178 5739012267 7652016356 11478024534 17217036801 22956049068 34434073602 68868147204