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2662013 = 17156589
BaseRepresentation
bin1010001001111001111101
312000020121002
422021321331
51140141023
6133020045
731424654
oct12117175
95006532
102662013
111559012
12a84625
13722873
144d419b
15378b28
hex289e7d

2662013 has 4 divisors (see below), whose sum is σ = 2818620. Its totient is φ = 2505408.

The previous prime is 2661991. The next prime is 2662027. The reversal of 2662013 is 3102662.

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 2229049 + 432964 = 1493^2 + 658^2 .

It is a cyclic number.

It is not a de Polignac number, because 2662013 - 26 = 2661949 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 (2662813) 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, 78278 + ... + 78311.

It is an arithmetic number, because the mean of its divisors is an integer number (704655).

22662013 is an apocalyptic number.

It is an amenable number.

2662013 is a deficient number, since it is larger than the sum of its proper divisors (156607).

2662013 is a wasteful number, since it uses less digits than its factorization.

2662013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156606.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2662013 is about 1631.5676510645. The cubic root of 2662013 is about 138.5915410938.

Adding to 2662013 its reverse (3102662), we get a palindrome (5764675).

The spelling of 2662013 in words is "two million, six hundred sixty-two thousand, thirteen".

Divisors: 1 17 156589 2662013