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2105252 = 222811873
BaseRepresentation
bin1000000001111110100100
310221221212022
420001332210
51014332002
6113042312
723615522
oct10017644
93857768
102105252
111208786
12856398
13589316
143cb312
152b8ba2
hex201fa4

2105252 has 12 divisors (see below), whose sum is σ = 3699276. Its totient is φ = 1048320.

The previous prime is 2105251. The next prime is 2105267. The reversal of 2105252 is 2525012.

It can be written as a sum of positive squares in 2 ways, for example, as 602176 + 1503076 = 776^2 + 1226^2 .

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 2105252.

It is not an unprimeable number, because it can be changed into a prime (2105251) 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, 188 + ... + 2060.

It is an arithmetic number, because the mean of its divisors is an integer number (308273).

22105252 is an apocalyptic number.

It is an amenable number.

2105252 is a deficient number, since it is larger than the sum of its proper divisors (1594024).

2105252 is a wasteful number, since it uses less digits than its factorization.

2105252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158 (or 2156 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2105252 is about 1450.9486551908. The cubic root of 2105252 is about 128.1645832090.

The spelling of 2105252 in words is "two million, one hundred five thousand, two hundred fifty-two".

Divisors: 1 2 4 281 562 1124 1873 3746 7492 526313 1052626 2105252