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68416593 = 372465419
BaseRepresentation
bin1000001001111…
…11010001010001
311202201220220220
410010333101101
5120003312333
610442223253
71460350200
oct404772121
9152656826
1068416593
113568a443
121aab4b29
1311235bbb
14912d237
1560168b3
hex413f451

68416593 has 12 divisors (see below), whose sum is σ = 106115760. Its totient is φ = 39095112.

The previous prime is 68416583. The next prime is 68416603. The reversal of 68416593 is 39561486.

It is an interprime number because it is at equal distance from previous prime (68416583) and next prime (68416603).

It is not a de Polignac number, because 68416593 - 25 = 68416561 is a prime.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (68416553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232563 + ... + 232856.

It is an arithmetic number, because the mean of its divisors is an integer number (8842980).

Almost surely, 268416593 is an apocalyptic number.

It is an amenable number.

68416593 is a deficient number, since it is larger than the sum of its proper divisors (37699167).

68416593 is a wasteful number, since it uses less digits than its factorization.

68416593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465436 (or 465429 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 68416593 is about 8271.4323427082. The cubic root of 68416593 is about 408.9973377955.

The spelling of 68416593 in words is "sixty-eight million, four hundred sixteen thousand, five hundred ninety-three".

Divisors: 1 3 7 21 49 147 465419 1396257 3257933 9773799 22805531 68416593