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3209013 = 321492393
BaseRepresentation
bin1100001111011100110101
320001000221100
430033130311
51310142023
6152440313
736163503
oct14173465
96030840
103209013
1118a1a85
1210a9099
13884832
145d7673
15435c43
hex30f735

3209013 has 12 divisors (see below), whose sum is σ = 4668300. Its totient is φ = 2124096.

The previous prime is 3209009. The next prime is 3209033. The reversal of 3209013 is 3109023.

It can be written as a sum of positive squares in 2 ways, for example, as 191844 + 3017169 = 438^2 + 1737^2 .

It is not a de Polignac number, because 3209013 - 22 = 3209009 is a prime.

3209013 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3209033) 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 11 ways as a sum of consecutive naturals, for example, 145 + ... + 2537.

It is an arithmetic number, because the mean of its divisors is an integer number (389025).

Almost surely, 23209013 is an apocalyptic number.

It is an amenable number.

3209013 is a deficient number, since it is larger than the sum of its proper divisors (1459287).

3209013 is a wasteful number, since it uses less digits than its factorization.

3209013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548 (or 2545 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 3209013 is about 1791.3718207005. The cubic root of 3209013 is about 147.4994809902.

The spelling of 3209013 in words is "three million, two hundred nine thousand, thirteen".

Divisors: 1 3 9 149 447 1341 2393 7179 21537 356557 1069671 3209013