Search a number
-
+
2745249 = 313431637
BaseRepresentation
bin1010011110001110100001
312011110202220
422132032201
51200321444
6134501253
732222433
oct12361641
95143686
102745249
111605601
12b04829
13751710
14516653
15393619
hex29e3a1

2745249 has 16 divisors (see below), whose sum is σ = 4036032. Its totient is φ = 1649088.

The previous prime is 2745229. The next prime is 2745251. The reversal of 2745249 is 9425472.

2745249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2745249 - 27 = 2745121 is a prime.

2745249 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745209) 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 in 15 ways as a sum of consecutive naturals, for example, 859 + ... + 2495.

It is an arithmetic number, because the mean of its divisors is an integer number (252252).

22745249 is an apocalyptic number.

It is an amenable number.

2745249 is a deficient number, since it is larger than the sum of its proper divisors (1290783).

2745249 is a wasteful number, since it uses less digits than its factorization.

2745249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696.

The product of its digits is 20160, while the sum is 33.

The square root of 2745249 is about 1656.8792955433. The cubic root of 2745249 is about 140.0212382745.

The spelling of 2745249 in words is "two million, seven hundred forty-five thousand, two hundred forty-nine".

Divisors: 1 3 13 39 43 129 559 1637 1677 4911 21281 63843 70391 211173 915083 2745249