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2061249 = 3687083
BaseRepresentation
bin111110111001111000001
310212201111120
413313033001
51011424444
6112102453
723343321
oct7671701
93781446
102061249
111188713
12834a29
13572298
143b9281
152aab19
hex1f73c1

2061249 has 4 divisors (see below), whose sum is σ = 2748336. Its totient is φ = 1374164.

The previous prime is 2061247. The next prime is 2061271. The reversal of 2061249 is 9421602.

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.

It is a cyclic number.

It is not a de Polignac number, because 2061249 - 21 = 2061247 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2061247) 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, 343539 + ... + 343544.

It is an arithmetic number, because the mean of its divisors is an integer number (687084).

22061249 is an apocalyptic number.

It is an amenable number.

2061249 is a deficient number, since it is larger than the sum of its proper divisors (687087).

2061249 is an equidigital number, since it uses as much as digits as its factorization.

2061249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687086.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2061249 is about 1435.7050532752. The cubic root of 2061249 is about 127.2653430935.

The spelling of 2061249 in words is "two million, sixty-one thousand, two hundred forty-nine".

Divisors: 1 3 687083 2061249