Search a number
-
+
2749253 = 13732897
BaseRepresentation
bin1010011111001101000101
312011200021012
422133031011
51200434003
6134532005
732240213
oct12371505
95150235
102749253
111608611
12b07005
137534a0
14517cb3
153948d8
hex29f345

2749253 has 8 divisors (see below), whose sum is σ = 3002328. Its totient is φ = 2502144.

The previous prime is 2749247. The next prime is 2749277. The reversal of 2749253 is 3529472.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 289 + 2748964 = 17^2 + 1658^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2749253 - 24 = 2749237 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 (2749283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500 + ... + 2397.

It is an arithmetic number, because the mean of its divisors is an integer number (375291).

22749253 is an apocalyptic number.

It is an amenable number.

2749253 is a deficient number, since it is larger than the sum of its proper divisors (253075).

2749253 is a wasteful number, since it uses less digits than its factorization.

2749253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983.

The product of its digits is 15120, while the sum is 32.

The square root of 2749253 is about 1658.0871509061. The cubic root of 2749253 is about 140.0892797877.

The spelling of 2749253 in words is "two million, seven hundred forty-nine thousand, two hundred fifty-three".

Divisors: 1 13 73 949 2897 37661 211481 2749253