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2112014545 = 5422402909
BaseRepresentation
bin111110111100010…
…1100100011010001
312110012010110021221
41331320230203101
513311133431140
6545323445041
7103223553544
oct17570544321
95405113257
102112014545
119941a4873
124ab386781
13278736664
141606d685b
15c563c14a
hex7de2c8d1

2112014545 has 4 divisors (see below), whose sum is σ = 2534417460. Its totient is φ = 1689611632.

The previous prime is 2112014539. The next prime is 2112014549. The reversal of 2112014545 is 5454102112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 320016321 + 1791998224 = 17889^2 + 42332^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112014545 - 213 = 2112006353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2112014549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211201450 + ... + 211201459.

It is an arithmetic number, because the mean of its divisors is an integer number (633604365).

Almost surely, 22112014545 is an apocalyptic number.

It is an amenable number.

2112014545 is a deficient number, since it is larger than the sum of its proper divisors (422402915).

2112014545 is an equidigital number, since it uses as much as digits as its factorization.

2112014545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422402914.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 2112014545 is about 45956.6594195009. The cubic root of 2112014545 is about 1283.0166772938.

Adding to 2112014545 its reverse (5454102112), we get a palindrome (7566116657).

The spelling of 2112014545 in words is "two billion, one hundred twelve million, fourteen thousand, five hundred forty-five".

Divisors: 1 5 422402909 2112014545