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68242910 = 258577963
BaseRepresentation
bin1000001000101…
…00110111011110
311202102002200012
410010110313132
5114432233120
610434403222
71456024631
oct404246736
9152362605
1068242910
11355809aa
121aa30512
13111a4b28
1490c5c18
155ed01c5
hex4114dde

68242910 has 16 divisors (see below), whose sum is σ = 122996016. Its totient is φ = 27261888.

The previous prime is 68242907. The next prime is 68242931. The reversal of 68242910 is 1924286.

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 7 ways as a sum of consecutive naturals, for example, 4589 + ... + 12551.

It is an arithmetic number, because the mean of its divisors is an integer number (7687251).

Almost surely, 268242910 is an apocalyptic number.

68242910 is a deficient number, since it is larger than the sum of its proper divisors (54753106).

68242910 is a wasteful number, since it uses less digits than its factorization.

68242910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8827.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 68242910 is about 8260.9267034637. The cubic root of 68242910 is about 408.6509496986.

The spelling of 68242910 in words is "sixty-eight million, two hundred forty-two thousand, nine hundred ten".

Divisors: 1 2 5 10 857 1714 4285 7963 8570 15926 39815 79630 6824291 13648582 34121455 68242910