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2745049 is a prime number
BaseRepresentation
bin1010011110001011011001
312011110111111
422132023121
51200320144
6134500321
732222026
oct12361331
95143444
102745049
11160543a
12b046a1
137515b8
1451654d
15393534
hex29e2d9

2745049 has 2 divisors, whose sum is σ = 2745050. Its totient is φ = 2745048.

The previous prime is 2745047. The next prime is 2745091. The reversal of 2745049 is 9405472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2673225 + 71824 = 1635^2 + 268^2 .

It is a cyclic number.

It is not a de Polignac number, because 2745049 - 21 = 2745047 is a prime.

Together with 2745047, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2745049.

It is not a weakly prime, because it can be changed into another prime (2745047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1372524 + 1372525.

It is an arithmetic number, because the mean of its divisors is an integer number (1372525).

22745049 is an apocalyptic number.

It is an amenable number.

2745049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2745049 is an equidigital number, since it uses as much as digits as its factorization.

2745049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 2745049 is about 1656.8189400173. The cubic root of 2745049 is about 140.0178378632.

The spelling of 2745049 in words is "two million, seven hundred forty-five thousand, forty-nine".