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68118252 = 22317714703
BaseRepresentation
bin1000000111101…
…10011011101100
311202011202200020
410003312123230
5114414241002
610432002140
71454665326
oct403663354
9152152606
1068118252
11354a6284
121a990350
1311160177
149092616
155ea82bc
hex40f66ec

68118252 has 48 divisors (see below), whose sum is σ = 170698752. Its totient is φ = 21064960.

The previous prime is 68118251. The next prime is 68118263. The reversal of 68118252 is 25281186.

It is not an unprimeable number, because it can be changed into a prime (68118251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12133 + ... + 16835.

It is an arithmetic number, because the mean of its divisors is an integer number (3556224).

Almost surely, 268118252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68118252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85349376).

68118252 is an abundant number, since it is smaller than the sum of its proper divisors (102580500).

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

68118252 is a wasteful number, since it uses less digits than its factorization.

68118252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4798 (or 4796 counting only the distinct ones).

The product of its digits is 7680, while the sum is 33.

The square root of 68118252 is about 8253.3782174331. The cubic root of 68118252 is about 408.4019731157.

The spelling of 68118252 in words is "sixty-eight million, one hundred eighteen thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 71 102 142 204 213 284 426 852 1207 2414 3621 4703 4828 7242 9406 14109 14484 18812 28218 56436 79951 159902 239853 319804 333913 479706 667826 959412 1001739 1335652 2003478 4006956 5676521 11353042 17029563 22706084 34059126 68118252