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2087249 = 10719507
BaseRepresentation
bin111111101100101010001
310221001011112
413331211101
51013242444
6112423105
723512163
oct7754521
93831145
102087249
1111a61aa
12847a95
13581078
143c4933
152b369e
hex1fd951

2087249 has 4 divisors (see below), whose sum is σ = 2106864. Its totient is φ = 2067636.

The previous prime is 2087233. The next prime is 2087287. The reversal of 2087249 is 9427802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9427802 = 24713901.

It is a cyclic number.

It is not a de Polignac number, because 2087249 - 24 = 2087233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2087219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9647 + ... + 9860.

It is an arithmetic number, because the mean of its divisors is an integer number (526716).

22087249 is an apocalyptic number.

It is an amenable number.

2087249 is a deficient number, since it is larger than the sum of its proper divisors (19615).

2087249 is a wasteful number, since it uses less digits than its factorization.

2087249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19614.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2087249 is about 1444.7314629370. The cubic root of 2087249 is about 127.7982049818.

The spelling of 2087249 in words is "two million, eighty-seven thousand, two hundred forty-nine".

Divisors: 1 107 19507 2087249