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68815334 = 278955229
BaseRepresentation
bin1000001101000…
…00100111100110
311210111011220002
410012200213212
5120104042314
610454541302
71463630540
oct406404746
9153434802
1068815334
1135931a85
121b067832
1311345543
1491d4690
156094ade
hex41a09e6

68815334 has 16 divisors (see below), whose sum is σ = 119296800. Its totient is φ = 29160384.

The previous prime is 68815309. The next prime is 68815367. The reversal of 68815334 is 43351886.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26369 + ... + 28860.

It is an arithmetic number, because the mean of its divisors is an integer number (7456050).

Almost surely, 268815334 is an apocalyptic number.

68815334 is a deficient number, since it is larger than the sum of its proper divisors (50481466).

68815334 is a wasteful number, since it uses less digits than its factorization.

68815334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55327.

The product of its digits is 69120, while the sum is 38.

The square root of 68815334 is about 8295.5008287625. The cubic root of 68815334 is about 409.7903627870.

The spelling of 68815334 in words is "sixty-eight million, eight hundred fifteen thousand, three hundred thirty-four".

Divisors: 1 2 7 14 89 178 623 1246 55229 110458 386603 773206 4915381 9830762 34407667 68815334