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68078342 = 2131259841
BaseRepresentation
bin1000000111011…
…00101100000110
311202002201221002
410003230230012
5114412001332
610431053302
71454441063
oct403545406
9152081832
1068078342
11354792a2
121a971232
1311147c57
149081c6a
155e9b562
hex40ecb06

68078342 has 8 divisors (see below), whose sum is σ = 102897432. Its totient is φ = 33779200.

The previous prime is 68078333. The next prime is 68078357. The reversal of 68078342 is 24387086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 68078296 and 68078305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129659 + ... + 130182.

It is an arithmetic number, because the mean of its divisors is an integer number (12862179).

Almost surely, 268078342 is an apocalyptic number.

68078342 is a deficient number, since it is larger than the sum of its proper divisors (34819090).

68078342 is a wasteful number, since it uses less digits than its factorization.

68078342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259974.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 68078342 is about 8250.9600653500. The cubic root of 68078342 is about 408.3221975953.

The spelling of 68078342 in words is "sixty-eight million, seventy-eight thousand, three hundred forty-two".

Divisors: 1 2 131 262 259841 519682 34039171 68078342