Search a number
-
+
205442014 = 2102721007
BaseRepresentation
bin11000011111011…
…00101111011110
3112022120112110111
430033230233132
5410043121024
632215200234
75043141211
oct1417545736
9468515414
10205442014
11a5a6a698
125897607a
133374132b
141d3db778
1513081a94
hexc3ecbde

205442014 has 4 divisors (see below), whose sum is σ = 308163024. Its totient is φ = 102721006.

The previous prime is 205442009. The next prime is 205442047. The reversal of 205442014 is 410244502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 410244502 = 2205122251.

It is a super-2 number, since 2×2054420142 = 84412842232752392, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51360502 + ... + 51360505.

It is an arithmetic number, because the mean of its divisors is an integer number (77040756).

Almost surely, 2205442014 is an apocalyptic number.

205442014 is a deficient number, since it is larger than the sum of its proper divisors (102721010).

205442014 is a wasteful number, since it uses less digits than its factorization.

205442014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102721009.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 205442014 is about 14333.2485501368. The cubic root of 205442014 is about 590.0603347280.

Adding to 205442014 its reverse (410244502), we get a palindrome (615686516).

The spelling of 205442014 in words is "two hundred five million, four hundred forty-two thousand, fourteen".

Divisors: 1 2 102721007 205442014