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2052111 = 3684037
BaseRepresentation
bin111110101000000001111
310212020222010
413311000033
51011131421
6111552303
723304555
oct7650017
93766863
102052111
111181866
1282b693
1356b089
143b5bd5
152a8076
hex1f500f

2052111 has 4 divisors (see below), whose sum is σ = 2736152. Its totient is φ = 1368072.

The previous prime is 2052109. The next prime is 2052119. The reversal of 2052111 is 1112502.

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

It is not a de Polignac number, because 2052111 - 21 = 2052109 is a prime.

It is a super-2 number, since 2×20521112 = 8422319112642, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

2052111 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2052119) 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, 342016 + ... + 342021.

It is an arithmetic number, because the mean of its divisors is an integer number (684038).

22052111 is an apocalyptic number.

2052111 is a deficient number, since it is larger than the sum of its proper divisors (684041).

2052111 is an equidigital number, since it uses as much as digits as its factorization.

2052111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684040.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 2052111 is about 1432.5191098202. The cubic root of 2052111 is about 127.0769987944.

Adding to 2052111 its reverse (1112502), we get a palindrome (3164613).

The spelling of 2052111 in words is "two million, fifty-two thousand, one hundred eleven".

Divisors: 1 3 684037 2052111