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2693989 is a prime number
BaseRepresentation
bin1010010001101101100101
312001212110101
422101231211
51142201424
6133424101
731620124
oct12215545
95055411
102693989
111580041
12a9b031
1373429c
14501abb
15383344
hex291b65

2693989 has 2 divisors, whose sum is σ = 2693990. Its totient is φ = 2693988.

The previous prime is 2693969. The next prime is 2694001. The reversal of 2693989 is 9893962.

It is a happy number.

2693989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1800964 + 893025 = 1342^2 + 945^2 .

It is a cyclic number.

It is not a de Polignac number, because 2693989 - 215 = 2661221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2693969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1346994 + 1346995.

It is an arithmetic number, because the mean of its divisors is an integer number (1346995).

22693989 is an apocalyptic number.

It is an amenable number.

2693989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2693989 is an equidigital number, since it uses as much as digits as its factorization.

2693989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 46.

The square root of 2693989 is about 1641.3375643054. The cubic root of 2693989 is about 139.1442527079.

It can be divided in two parts, 26939 and 89, that added together give a triangular number (27028 = T232).

The spelling of 2693989 in words is "two million, six hundred ninety-three thousand, nine hundred eighty-nine".