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2112435442 = 21326249809
BaseRepresentation
bin111110111101001…
…0011010011110010
312110012220211122201
41331322103103302
513311240413232
6545340453414
7103230255625
oct17572232362
95405824581
102112435442
11994462017
124ab54a26a
13278853100
141607a5dbc
15c56c1be7
hex7de934f2

2112435442 has 12 divisors (see below), whose sum is σ = 3431145690. Its totient is φ = 974970048.

The previous prime is 2112435433. The next prime is 2112435443. The reversal of 2112435442 is 2445342112.

It can be written as a sum of positive squares in 3 ways, for example, as 1476941761 + 635493681 = 38431^2 + 25209^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2112435442.

It is not an unprimeable number, because it can be changed into a prime (2112435443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3124567 + ... + 3125242.

Almost surely, 22112435442 is an apocalyptic number.

2112435442 is a deficient number, since it is larger than the sum of its proper divisors (1318710248).

2112435442 is a wasteful number, since it uses less digits than its factorization.

2112435442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6249837 (or 6249824 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 2112435442 is about 45961.2384733049. The cubic root of 2112435442 is about 1283.1019011389.

Adding to 2112435442 its reverse (2445342112), we get a palindrome (4557777554).

The spelling of 2112435442 in words is "two billion, one hundred twelve million, four hundred thirty-five thousand, four hundred forty-two".

Divisors: 1 2 13 26 169 338 6249809 12499618 81247517 162495034 1056217721 2112435442