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2112518075 = 528310092
BaseRepresentation
bin111110111101010…
…0111011110111011
312110020002001000012
41331322213132323
513311301034300
6545342332135
7103231051553
oct17572473673
95406061005
102112518075
11994509108
124ab58a04b
132788818c5
141607c8163
15c56db435
hex7dea77bb

2112518075 has 18 divisors (see below), whose sum is σ = 2653712964. Its totient is φ = 1667998080.

The previous prime is 2112518047. The next prime is 2112518077. The reversal of 2112518075 is 5708152112.

It is not a de Polignac number, because 2112518075 - 28 = 2112517819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112518077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2093171 + ... + 2094179.

It is an arithmetic number, because the mean of its divisors is an integer number (147428498).

Almost surely, 22112518075 is an apocalyptic number.

2112518075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2112518075 is a deficient number, since it is larger than the sum of its proper divisors (541194889).

2112518075 is an frugal number, since it uses more digits than its factorization.

2112518075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 32.

The square root of 2112518075 is about 45962.1374067830. The cubic root of 2112518075 is about 1283.1186314611.

The spelling of 2112518075 in words is "two billion, one hundred twelve million, five hundred eighteen thousand, seventy-five".

Divisors: 1 5 25 83 415 1009 2075 5045 25225 83747 418735 1018081 2093675 5090405 25452025 84500723 422503615 2112518075