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68222682 = 23311432671
BaseRepresentation
bin1000001000011…
…11111011011010
311202101001221000
410010033323122
5114431111212
610434125430
71455611643
oct404177332
9152331830
1068222682
1135567790
121aa20876
1311198868
1490bc6ca
155ec91dc
hex410feda

68222682 has 64 divisors (see below), whose sum is σ = 169297920. Its totient is φ = 20185200.

The previous prime is 68222681. The next prime is 68222689. The reversal of 68222682 is 28622286.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68222681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24207 + ... + 26877.

It is an arithmetic number, because the mean of its divisors is an integer number (2645280).

Almost surely, 268222682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68222682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84648960).

68222682 is an abundant number, since it is smaller than the sum of its proper divisors (101075238).

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

68222682 is a wasteful number, since it uses less digits than its factorization.

68222682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736 (or 2730 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 68222682 is about 8259.7022948772. The cubic root of 68222682 is about 408.6105693950.

The spelling of 68222682 in words is "sixty-eight million, two hundred twenty-two thousand, six hundred eighty-two".

Divisors: 1 2 3 6 9 11 18 22 27 33 43 54 66 86 99 129 198 258 297 387 473 594 774 946 1161 1419 2322 2671 2838 4257 5342 8013 8514 12771 16026 24039 25542 29381 48078 58762 72117 88143 114853 144234 176286 229706 264429 344559 528858 689118 793287 1033677 1263383 1586574 2067354 2526766 3101031 3790149 6202062 7580298 11370447 22740894 34111341 68222682