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68647252 = 22130313171
BaseRepresentation
bin1000001011101…
…11100101010100
311210011122022211
410011313211110
5120033203002
610451203204
71462330522
oct405674524
9153148284
1068647252
1135827773
121aba6504
13112b6b9b
14918d312
15605edd7
hex4177954

68647252 has 12 divisors (see below), whose sum is σ = 120234016. Its totient is φ = 34294680.

The previous prime is 68647231. The next prime is 68647261. The reversal of 68647252 is 25274686.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1374 + ... + 11797.

Almost surely, 268647252 is an apocalyptic number.

It is an amenable number.

68647252 is a deficient number, since it is larger than the sum of its proper divisors (51586764).

68647252 is a wasteful number, since it uses less digits than its factorization.

68647252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14478 (or 14476 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The square root of 68647252 is about 8285.3637216480. The cubic root of 68647252 is about 409.4564520404.

The spelling of 68647252 in words is "sixty-eight million, six hundred forty-seven thousand, two hundred fifty-two".

Divisors: 1 2 4 1303 2606 5212 13171 26342 52684 17161813 34323626 68647252