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68597413 = 231129683
BaseRepresentation
bin1000001011010…
…11011010100101
311210002002221221
410011223122211
5120030104123
610450140341
71462032313
oct405533245
9153062857
1068597413
11357a3285
121ab816b1
131129a2b1
1491790b3
15605025d
hex416b6a5

68597413 has 4 divisors (see below), whose sum is σ = 68629408. Its totient is φ = 68565420.

The previous prime is 68597401. The next prime is 68597437. The reversal of 68597413 is 31479586.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68597413 - 25 = 68597381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68597413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68597713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12531 + ... + 17152.

It is an arithmetic number, because the mean of its divisors is an integer number (17157352).

Almost surely, 268597413 is an apocalyptic number.

It is an amenable number.

68597413 is a deficient number, since it is larger than the sum of its proper divisors (31995).

68597413 is a wasteful number, since it uses less digits than its factorization.

68597413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31994.

The product of its digits is 181440, while the sum is 43.

The square root of 68597413 is about 8282.3555224344. The cubic root of 68597413 is about 409.3573374117.

The spelling of 68597413 in words is "sixty-eight million, five hundred ninety-seven thousand, four hundred thirteen".

Divisors: 1 2311 29683 68597413