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2065219 = 13158863
BaseRepresentation
bin111111000001101000011
310212220221121
413320031003
51012041334
6112133111
723361022
oct7701503
93786847
102065219
1111906a2
12837197
13574030
143ba8b9
152abdb4
hex1f8343

2065219 has 4 divisors (see below), whose sum is σ = 2224096. Its totient is φ = 1906344.

The previous prime is 2065213. The next prime is 2065241. The reversal of 2065219 is 9125602.

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

It is a cyclic number.

It is not a de Polignac number, because 2065219 - 25 = 2065187 is a prime.

It is a super-2 number, since 2×20652192 = 8530259035922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2065193 and 2065202.

It is not an unprimeable number, because it can be changed into a prime (2065213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79419 + ... + 79444.

It is an arithmetic number, because the mean of its divisors is an integer number (556024).

22065219 is an apocalyptic number.

2065219 is a deficient number, since it is larger than the sum of its proper divisors (158877).

2065219 is a wasteful number, since it uses less digits than its factorization.

2065219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158876.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 2065219 is about 1437.0869841454. The cubic root of 2065219 is about 127.3469957533.

The spelling of 2065219 in words is "two million, sixty-five thousand, two hundred nineteen".

Divisors: 1 13 158863 2065219