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68696597 = 74899173
BaseRepresentation
bin1000001100000…
…11101000010101
311210021011000102
410012003220111
5120041242342
610452223445
71462624424
oct406035025
9153234012
1068696597
1135860852
121b00ab85
1311303498
1491a32bb
15606e832
hex4183a15

68696597 has 4 divisors (see below), whose sum is σ = 68713260. Its totient is φ = 68679936.

The previous prime is 68696569. The next prime is 68696627. The reversal of 68696597 is 79569686.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 14394436 + 54302161 = 3794^2 + 7369^2 .

It is a cyclic number.

It is not a de Polignac number, because 68696597 - 210 = 68695573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68696297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2903 + ... + 12075.

It is an arithmetic number, because the mean of its divisors is an integer number (17178315).

Almost surely, 268696597 is an apocalyptic number.

It is an amenable number.

68696597 is a deficient number, since it is larger than the sum of its proper divisors (16663).

68696597 is an equidigital number, since it uses as much as digits as its factorization.

68696597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16662.

The product of its digits is 4898880, while the sum is 56.

The square root of 68696597 is about 8288.3410282155. The cubic root of 68696597 is about 409.5545370029.

The spelling of 68696597 in words is "sixty-eight million, six hundred ninety-six thousand, five hundred ninety-seven".

Divisors: 1 7489 9173 68696597