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68706794 = 2132642569
BaseRepresentation
bin1000001100001…
…10000111101010
311210021200000002
410012012013222
5120042104134
610452343002
71462666232
oct406060752
9153250002
1068706794
1135868482
121b014a62
1311308010
1491a6cc2
15607287e
hex41861ea

68706794 has 8 divisors (see below), whose sum is σ = 110987940. Its totient is φ = 31710816.

The previous prime is 68706791. The next prime is 68706839. The reversal of 68706794 is 49760786.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63123025 + 5583769 = 7945^2 + 2363^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68706791) by changing a digit.

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, 1321259 + ... + 1321310.

Almost surely, 268706794 is an apocalyptic number.

68706794 is a deficient number, since it is larger than the sum of its proper divisors (42281146).

68706794 is a wasteful number, since it uses less digits than its factorization.

68706794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642584.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 68706794 is about 8288.9561465844. The cubic root of 68706794 is about 409.5748001172.

The spelling of 68706794 in words is "sixty-eight million, seven hundred six thousand, seven hundred ninety-four".

Divisors: 1 2 13 26 2642569 5285138 34353397 68706794