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68124042 = 23274113187
BaseRepresentation
bin1000000111101…
…11110110001010
311202012001121200
410003313312022
5114414432132
610432045030
71455021240
oct403676612
9152161550
1068124042
11354aa668
121a993776
13111629ac
149094790
155ea9d7c
hex40f7d8a

68124042 has 48 divisors (see below), whose sum is σ = 172815552. Its totient is φ = 18987840.

The previous prime is 68124041. The next prime is 68124073. The reversal of 68124042 is 24042186.

It is a junction number, because it is equal to n+sod(n) for n = 68123997 and 68124015.

It is not an unprimeable number, because it can be changed into a prime (68124041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1428 + ... + 11759.

It is an arithmetic number, because the mean of its divisors is an integer number (3600324).

Almost surely, 268124042 is an apocalyptic number.

68124042 is an abundant number, since it is smaller than the sum of its proper divisors (104691510).

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

68124042 is a wasteful number, since it uses less digits than its factorization.

68124042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13243 (or 13240 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 68124042 is about 8253.7289754389. The cubic root of 68124042 is about 408.4135440744.

The spelling of 68124042 in words is "sixty-eight million, one hundred twenty-four thousand, forty-two".

Divisors: 1 2 3 6 7 9 14 18 21 41 42 63 82 123 126 246 287 369 574 738 861 1722 2583 5166 13187 26374 39561 79122 92309 118683 184618 237366 276927 540667 553854 830781 1081334 1622001 1661562 3244002 3784669 4866003 7569338 9732006 11354007 22708014 34062021 68124042