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68107746 = 23721713627
BaseRepresentation
bin1000000111100…
…11110111100010
311202011020021010
410003303313202
5114413421441
610431441350
71454622600
oct403636742
9152136233
1068107746
11354993a3
121a986256
1311158455
14908c870
155ea5116
hex40f3de2

68107746 has 48 divisors (see below), whose sum is σ = 167787936. Its totient is φ = 18313344.

The previous prime is 68107727. The next prime is 68107783. The reversal of 68107746 is 64770186.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent 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, 1816 + ... + 11811.

It is an arithmetic number, because the mean of its divisors is an integer number (3495582).

Almost surely, 268107746 is an apocalyptic number.

68107746 is an abundant number, since it is smaller than the sum of its proper divisors (99680190).

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

68107746 is a wasteful number, since it uses less digits than its factorization.

68107746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13663 (or 13656 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 68107746 is about 8252.7417262386. The cubic root of 68107746 is about 408.3809758470.

The spelling of 68107746 in words is "sixty-eight million, one hundred seven thousand, seven hundred forty-six".

Divisors: 1 2 3 6 7 14 17 21 34 42 49 51 98 102 119 147 238 294 357 714 833 1666 2499 4998 13627 27254 40881 81762 95389 190778 231659 286167 463318 572334 667723 694977 1335446 1389954 1621613 2003169 3243226 4006338 4864839 9729678 11351291 22702582 34053873 68107746