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2068819 = 4150459
BaseRepresentation
bin111111001000101010011
310220002212221
413321011103
51012200234
6112201511
723404354
oct7710523
93802787
102068819
111193375
12839297
1357586c
143bbd2b
152aceb4
hex1f9153

2068819 has 4 divisors (see below), whose sum is σ = 2119320. Its totient is φ = 2018320.

The previous prime is 2068817. The next prime is 2068823. The reversal of 2068819 is 9188602.

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 2068819 - 21 = 2068817 is a prime.

It is a super-2 number, since 2×20688192 = 8560024109522, which contains 22 as substring.

It is a Duffinian number.

2068819 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2068811) 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, 25189 + ... + 25270.

It is an arithmetic number, because the mean of its divisors is an integer number (529830).

22068819 is an apocalyptic number.

2068819 is a deficient number, since it is larger than the sum of its proper divisors (50501).

2068819 is an equidigital number, since it uses as much as digits as its factorization.

2068819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50500.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 2068819 is about 1438.3389725652. The cubic root of 2068819 is about 127.4209480491.

It can be divided in two parts, 206 and 8819, that added together give a square (9025 = 952).

The spelling of 2068819 in words is "two million, sixty-eight thousand, eight hundred nineteen".

Divisors: 1 41 50459 2068819