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68094513 = 342336551
BaseRepresentation
bin1000000111100…
…00101000110001
311202010120010000
410003300220301
5114413011023
610431300213
71454536164
oct403605061
9152116100
1068094513
113548a463
121a97a669
1311152416
149087adb
155ea1243
hex40f0a31

68094513 has 20 divisors (see below), whose sum is σ = 106147008. Its totient is φ = 43421400.

The previous prime is 68094491. The next prime is 68094539. The reversal of 68094513 is 31549086.

It is not a de Polignac number, because 68094513 - 210 = 68093489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68099513) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16413 + ... + 20138.

Almost surely, 268094513 is an apocalyptic number.

It is an amenable number.

68094513 is a deficient number, since it is larger than the sum of its proper divisors (38052495).

68094513 is a wasteful number, since it uses less digits than its factorization.

68094513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36586 (or 36577 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 68094513 is about 8251.9399537321. The cubic root of 68094513 is about 408.3545253289.

The spelling of 68094513 in words is "sixty-eight million, ninety-four thousand, five hundred thirteen".

Divisors: 1 3 9 23 27 69 81 207 621 1863 36551 109653 328959 840673 986877 2522019 2960631 7566057 22698171 68094513