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68168826 = 232112314969
BaseRepresentation
bin1000001000000…
…10110001111010
311202021100001100
410010002301322
5114422400301
610433032230
71455265635
oct404026172
9152240040
1068168826
1135530280
121a9b5676
131117a1ab
1490a6c1c
155eb8286
hex4102c7a

68168826 has 48 divisors (see below), whose sum is σ = 168143040. Its totient is φ = 19757760.

The previous prime is 68168809. The next prime is 68168851. The reversal of 68168826 is 62886186.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2931 + ... + 12038.

It is an arithmetic number, because the mean of its divisors is an integer number (3502980).

Almost surely, 268168826 is an apocalyptic number.

68168826 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

68168826 is an abundant number, since it is smaller than the sum of its proper divisors (99974214).

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

68168826 is a wasteful number, since it uses less digits than its factorization.

68168826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15011 (or 15008 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 68168826 is about 8256.4414852889. The cubic root of 68168826 is about 408.5030200025.

The spelling of 68168826 in words is "sixty-eight million, one hundred sixty-eight thousand, eight hundred twenty-six".

Divisors: 1 2 3 6 9 11 18 22 23 33 46 66 69 99 138 198 207 253 414 506 759 1518 2277 4554 14969 29938 44907 89814 134721 164659 269442 329318 344287 493977 688574 987954 1032861 1481931 2065722 2963862 3098583 3787157 6197166 7574314 11361471 22722942 34084413 68168826