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68024393 = 7383103109
BaseRepresentation
bin1000000110111…
…11100001001001
311201222222220222
410003133201021
5114403240033
610425555425
71454124563
oct403374111
9151888828
1068024393
1135441808
121a945b75
1311129528
14906a333
155e8a598
hex40df849

68024393 has 16 divisors (see below), whose sum is σ = 71111040. Its totient is φ = 65038464.

The previous prime is 68024381. The next prime is 68024399. The reversal of 68024393 is 39342086.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 68024393 - 24 = 68024377 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68024399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 624023 + ... + 624131.

It is an arithmetic number, because the mean of its divisors is an integer number (4444440).

Almost surely, 268024393 is an apocalyptic number.

It is an amenable number.

68024393 is a deficient number, since it is larger than the sum of its proper divisors (3086647).

68024393 is a wasteful number, since it uses less digits than its factorization.

68024393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 68024393 is about 8247.6901614937. The cubic root of 68024393 is about 408.2143101477.

The spelling of 68024393 in words is "sixty-eight million, twenty-four thousand, three hundred ninety-three".

Divisors: 1 73 83 103 109 6059 7519 7957 8549 9047 11227 624077 660431 819571 931841 68024393