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2119185 = 32547093
BaseRepresentation
bin1000000101011000010001
310222122222100
420011120101
51020303220
6113231013
724004245
oct10053021
93878870
102119185
1112181a2
12862469
13592773
143d2425
152bcd90
hex205611

2119185 has 12 divisors (see below), whose sum is σ = 3673332. Its totient is φ = 1130208.

The previous prime is 2119171. The next prime is 2119189. The reversal of 2119185 is 5819112.

It can be written as a sum of positive squares in 2 ways, for example, as 1679616 + 439569 = 1296^2 + 663^2 .

It is not a de Polignac number, because 2119185 - 26 = 2119121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2119189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23502 + ... + 23591.

It is an arithmetic number, because the mean of its divisors is an integer number (306111).

22119185 is an apocalyptic number.

It is an amenable number.

2119185 is a deficient number, since it is larger than the sum of its proper divisors (1554147).

2119185 is a wasteful number, since it uses less digits than its factorization.

2119185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47104 (or 47101 counting only the distinct ones).

The product of its digits is 720, while the sum is 27.

The square root of 2119185 is about 1455.7420788038. The cubic root of 2119185 is about 128.4467017934.

It can be divided in two parts, 2119 and 185, that added together give a square (2304 = 482).

The spelling of 2119185 in words is "two million, one hundred nineteen thousand, one hundred eighty-five".

Divisors: 1 3 5 9 15 45 47093 141279 235465 423837 706395 2119185