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68357024 = 252136157
BaseRepresentation
bin1000001001100…
…00101110100000
311202121220012122
410010300232200
5114444411044
610441043412
71460011421
oct404605640
9152556178
1068357024
113564970a
121aa86568
1311214a58
149115648
156003dee
hex4130ba0

68357024 has 12 divisors (see below), whose sum is σ = 134577954. Its totient is φ = 34178496.

The previous prime is 68357021. The next prime is 68357033. The reversal of 68357024 is 42075386.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 61905424 + 6451600 = 7868^2 + 2540^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68357021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068047 + ... + 1068110.

Almost surely, 268357024 is an apocalyptic number.

It is an amenable number.

68357024 is a deficient number, since it is larger than the sum of its proper divisors (66220930).

68357024 is a wasteful number, since it uses less digits than its factorization.

68357024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136167 (or 2136159 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 68357024 is about 8267.8306707382. The cubic root of 68357024 is about 408.8786013130.

The spelling of 68357024 in words is "sixty-eight million, three hundred fifty-seven thousand, twenty-four".

Divisors: 1 2 4 8 16 32 2136157 4272314 8544628 17089256 34178512 68357024