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68123862 = 2331774209
BaseRepresentation
bin1000000111101…
…11110011010110
311202012001101000
410003313303112
5114414430422
610432044130
71455020562
oct403676326
9152161330
1068123862
11354aa514
121a993646
13111628a1
1490946a2
155ea9cac
hex40f7cd6

68123862 has 32 divisors (see below), whose sum is σ = 160293600. Its totient is φ = 21371904.

The previous prime is 68123857. The next prime is 68123897. The reversal of 68123862 is 26832186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36187 + ... + 38022.

It is an arithmetic number, because the mean of its divisors is an integer number (5009175).

Almost surely, 268123862 is an apocalyptic number.

68123862 is an abundant number, since it is smaller than the sum of its proper divisors (92169738).

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

68123862 is a wasteful number, since it uses less digits than its factorization.

68123862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74237 (or 74231 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 68123862 is about 8253.7180712695. The cubic root of 68123862 is about 408.4131843653.

The spelling of 68123862 in words is "sixty-eight million, one hundred twenty-three thousand, eight hundred sixty-two".

Divisors: 1 2 3 6 9 17 18 27 34 51 54 102 153 306 459 918 74209 148418 222627 445254 667881 1261553 1335762 2003643 2523106 3784659 4007286 7569318 11353977 22707954 34061931 68123862