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6869813 is a prime number
BaseRepresentation
bin11010001101001100110101
3110221000121112
4122031030311
53224313223
6403124405
7112251416
oct32151465
913830545
106869813
113972435
122373705
131566ba2
14cab80d
1590a778
hex68d335

6869813 has 2 divisors, whose sum is σ = 6869814. Its totient is φ = 6869812.

The previous prime is 6869803. The next prime is 6869833. The reversal of 6869813 is 3189686.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6646084 + 223729 = 2578^2 + 473^2 .

It is a cyclic number.

It is not a de Polignac number, because 6869813 - 26 = 6869749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6869803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3434906 + 3434907.

It is an arithmetic number, because the mean of its divisors is an integer number (3434907).

Almost surely, 26869813 is an apocalyptic number.

It is an amenable number.

6869813 is a deficient number, since it is larger than the sum of its proper divisors (1).

6869813 is an equidigital number, since it uses as much as digits as its factorization.

6869813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 6869813 is about 2621.0328116985. The cubic root of 6869813 is about 190.0997906081.

The spelling of 6869813 in words is "six million, eight hundred sixty-nine thousand, eight hundred thirteen".