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2875249 = 13221173
BaseRepresentation
bin1010111101111101110001
312102002002201
422331331301
51214001444
6141343201
733303436
oct12757561
95362081
102875249
111694243
12b67b01
13798940
1454bb8d
153bbdd4
hex2bdf71

2875249 has 4 divisors (see below), whose sum is σ = 3096436. Its totient is φ = 2654064.

The previous prime is 2875211. The next prime is 2875267. The reversal of 2875249 is 9425782.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 129600 + 2745649 = 360^2 + 1657^2 .

It is a cyclic number.

It is not a de Polignac number, because 2875249 - 29 = 2874737 is a prime.

It is a Duffinian number.

2875249 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2875049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110574 + ... + 110599.

It is an arithmetic number, because the mean of its divisors is an integer number (774109).

22875249 is an apocalyptic number.

It is an amenable number.

2875249 is a deficient number, since it is larger than the sum of its proper divisors (221187).

2875249 is a wasteful number, since it uses less digits than its factorization.

2875249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221186.

The product of its digits is 40320, while the sum is 37.

The square root of 2875249 is about 1695.6559202857. The cubic root of 2875249 is about 142.1974539342.

The spelling of 2875249 in words is "two million, eight hundred seventy-five thousand, two hundred forty-nine".

Divisors: 1 13 221173 2875249