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68039726 = 271479153
BaseRepresentation
bin1000000111000…
…11010000101110
311202000202221212
410003203100232
5114404232401
610430154422
71454220356
oct403432056
9152022855
1068039726
1135452287
121a952a12
13111334c1
149071b66
155e8edbb
hex40e342e

68039726 has 8 divisors (see below), whose sum is σ = 103497264. Its totient is φ = 33540640.

The previous prime is 68039711. The next prime is 68039731. The reversal of 68039726 is 62793086.

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

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, 239435 + ... + 239718.

It is an arithmetic number, because the mean of its divisors is an integer number (12937158).

Almost surely, 268039726 is an apocalyptic number.

68039726 is a deficient number, since it is larger than the sum of its proper divisors (35457538).

68039726 is a wasteful number, since it uses less digits than its factorization.

68039726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479226.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 68039726 is about 8248.6196420977. The cubic root of 68039726 is about 408.2449789490.

The spelling of 68039726 in words is "sixty-eight million, thirty-nine thousand, seven hundred twenty-six".

Divisors: 1 2 71 142 479153 958306 34019863 68039726