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2106853 = 72193173
BaseRepresentation
bin1000000010010111100101
310222001001121
420002113211
51014404403
6113053541
723623300
oct10022745
93861047
102106853
111209a01
128572b1
13589c78
143cbb37
152b93bd
hex2025e5

2106853 has 24 divisors (see below), whose sum is σ = 2699520. Its totient is φ = 1632960.

The previous prime is 2106847. The next prime is 2106857. The reversal of 2106853 is 3586012.

It is a happy number.

It is not a de Polignac number, because 2106853 - 29 = 2106341 is a prime.

It is a d-powerful number, because it can be written as 221 + 1 + 0 + 6 + 8 + 55 + 38 .

It is the 1452-nd Hogben number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106857) by changing a digit.

It is a nontrivial repunit in base 1451.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28825 + ... + 28897.

It is an arithmetic number, because the mean of its divisors is an integer number (112480).

22106853 is an apocalyptic number.

It is an amenable number.

2106853 is a deficient number, since it is larger than the sum of its proper divisors (592667).

2106853 is a wasteful number, since it uses less digits than its factorization.

2106853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2106853 is about 1451.5002583534. The cubic root of 2106853 is about 128.1970638028.

The spelling of 2106853 in words is "two million, one hundred six thousand, eight hundred fifty-three".

Divisors: 1 7 19 31 49 73 133 217 511 589 931 1387 1519 2263 3577 4123 9709 15841 28861 42997 67963 110887 300979 2106853