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2105353 = 12011753
BaseRepresentation
bin1000000010000000001001
310221222000001
420002000021
51014332403
6113043001
723616025
oct10020011
93858001
102105353
111208868
12856461
13589393
143cb385
152b8c1d
hex202009

2105353 has 4 divisors (see below), whose sum is σ = 2108308. Its totient is φ = 2102400.

The previous prime is 2105347. The next prime is 2105357. The reversal of 2105353 is 3535012.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 23104 + 2082249 = 152^2 + 1443^2 .

It is a cyclic number.

It is not a de Polignac number, because 2105353 - 29 = 2104841 is a prime.

It is a super-2 number, since 2×21053532 = 8865022509218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2105353.

It is not an unprimeable number, because it can be changed into a prime (2105357) 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, 325 + ... + 2077.

It is an arithmetic number, because the mean of its divisors is an integer number (527077).

22105353 is an apocalyptic number.

It is an amenable number.

2105353 is a deficient number, since it is larger than the sum of its proper divisors (2955).

2105353 is a wasteful number, since it uses less digits than its factorization.

2105353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2954.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 2105353 is about 1450.9834595887. The cubic root of 2105353 is about 128.1666327524.

The spelling of 2105353 in words is "two million, one hundred five thousand, three hundred fifty-three".

Divisors: 1 1201 1753 2105353