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2065261 = 11187751
BaseRepresentation
bin111111000001101101101
310212221000011
413320031231
51012042021
6112133221
723361112
oct7701555
93787004
102065261
111190730
12837211
13574063
143ba909
152abde1
hex1f836d

2065261 has 4 divisors (see below), whose sum is σ = 2253024. Its totient is φ = 1877500.

The previous prime is 2065241. The next prime is 2065267. The reversal of 2065261 is 1625602.

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 2065261 - 211 = 2063213 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 (2065267) 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, 93865 + ... + 93886.

It is an arithmetic number, because the mean of its divisors is an integer number (563256).

22065261 is an apocalyptic number.

It is an amenable number.

2065261 is a deficient number, since it is larger than the sum of its proper divisors (187763).

2065261 is a wasteful number, since it uses less digits than its factorization.

2065261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187762.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2065261 is about 1437.1015969652. The cubic root of 2065261 is about 127.3478590253.

The spelling of 2065261 in words is "two million, sixty-five thousand, two hundred sixty-one".

Divisors: 1 11 187751 2065261