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69396385 = 513879277
BaseRepresentation
bin1000010001011…
…10011110100001
311211120200221111
410020232132201
5120231141020
610515223321
71501600552
oct410563641
9154520844
1069396385
1136199593
121b2a7b41
13114b9b66
149306329
15615bd5a
hex422e7a1

69396385 has 4 divisors (see below), whose sum is σ = 83275668. Its totient is φ = 55517104.

The previous prime is 69396361. The next prime is 69396403. The reversal of 69396385 is 58369396.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46662561 + 22733824 = 6831^2 + 4768^2 .

It is a cyclic number.

It is not a de Polignac number, because 69396385 - 223 = 61007777 is a prime.

It is a Smith number, since the sum of its digits (49) 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6939634 + ... + 6939643.

It is an arithmetic number, because the mean of its divisors is an integer number (20818917).

Almost surely, 269396385 is an apocalyptic number.

It is an amenable number.

69396385 is a deficient number, since it is larger than the sum of its proper divisors (13879283).

69396385 is a wasteful number, since it uses less digits than its factorization.

69396385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13879282.

The product of its digits is 1049760, while the sum is 49.

The square root of 69396385 is about 8330.4492675966. The cubic root of 69396385 is about 410.9405040140.

The spelling of 69396385 in words is "sixty-nine million, three hundred ninety-six thousand, three hundred eighty-five".

Divisors: 1 5 13879277 69396385