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68242048 = 27776163
BaseRepresentation
bin1000001000101…
…00101010000000
311202102001111021
410010110222000
5114432221143
610434355224
71456022260
oct404245200
9152361437
1068242048
1135580296
121aa2bb14
13111a4614
1490c57a0
155ececed
hex4114a80

68242048 has 32 divisors (see below), whose sum is σ = 155374560. Its totient is φ = 29246208.

The previous prime is 68242043. The next prime is 68242049. The reversal of 68242048 is 84024286.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (68242043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37186 + ... + 38977.

It is an arithmetic number, because the mean of its divisors is an integer number (4855455).

Almost surely, 268242048 is an apocalyptic number.

It is an amenable number.

68242048 is an abundant number, since it is smaller than the sum of its proper divisors (87132512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68242048 is an equidigital number, since it uses as much as digits as its factorization.

68242048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76184 (or 76172 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 68242048 is about 8260.8745299756. The cubic root of 68242048 is about 408.6492290872.

The spelling of 68242048 in words is "sixty-eight million, two hundred forty-two thousand, forty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 448 896 76163 152326 304652 533141 609304 1066282 1218608 2132564 2437216 4265128 4874432 8530256 9748864 17060512 34121024 68242048