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68162305 = 517976159
BaseRepresentation
bin1000001000000…
…01001100000001
311202021000002211
410010001030001
5114422143210
610432542121
71455240631
oct404011401
9152230084
1068162305
1135526392
121a9b1941
1311177233
1490a46c1
155eb638a
hex4101301

68162305 has 8 divisors (see below), whose sum is σ = 82252800. Its totient is φ = 54224496.

The previous prime is 68162261. The next prime is 68162309. The reversal of 68162305 is 50326186.

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

It is a cyclic number.

It is not a de Polignac number, because 68162305 - 223 = 59773697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68162309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37185 + ... + 38974.

It is an arithmetic number, because the mean of its divisors is an integer number (10281600).

Almost surely, 268162305 is an apocalyptic number.

It is an amenable number.

68162305 is a deficient number, since it is larger than the sum of its proper divisors (14090495).

68162305 is a wasteful number, since it uses less digits than its factorization.

68162305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76343.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 68162305 is about 8256.0465720586. The cubic root of 68162305 is about 408.4899938472.

The spelling of 68162305 in words is "sixty-eight million, one hundred sixty-two thousand, three hundred five".

Divisors: 1 5 179 895 76159 380795 13632461 68162305