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2052105 = 351112437
BaseRepresentation
bin111110101000000001001
310212020221220
413311000021
51011131410
6111552253
723304546
oct7650011
93766856
102052105
111181860
1282b689
1356b083
143b5bcd
152a8070
hex1f5009

2052105 has 16 divisors (see below), whose sum is σ = 3582144. Its totient is φ = 994880.

The previous prime is 2052097. The next prime is 2052109. The reversal of 2052105 is 5012502.

It is not a de Polignac number, because 2052105 - 23 = 2052097 is a prime.

It is a super-2 number, since 2×20521052 = 8422269862050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2052109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6054 + ... + 6383.

It is an arithmetic number, because the mean of its divisors is an integer number (223884).

22052105 is an apocalyptic number.

It is an amenable number.

2052105 is a deficient number, since it is larger than the sum of its proper divisors (1530039).

2052105 is a wasteful number, since it uses less digits than its factorization.

2052105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12456.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 2052105 is about 1432.5170156057. The cubic root of 2052105 is about 127.0768749443.

Adding to 2052105 its reverse (5012502), we get a palindrome (7064607).

It can be divided in two parts, 20 and 52105, that added together give a palindrome (52125).

The spelling of 2052105 in words is "two million, fifty-two thousand, one hundred five".

Divisors: 1 3 5 11 15 33 55 165 12437 37311 62185 136807 186555 410421 684035 2052105