Search a number
-
+
231214514 = 2537927611
BaseRepresentation
bin11011100100000…
…00110110110010
3121010001220200112
431302000312302
5433142331024
634535421322
75505201536
oct1562006662
9533056615
10231214514
11109572983
1265524842
1338b9602b
14229c9bc6
151547300e
hexdc80db2

231214514 has 16 divisors (see below), whose sum is σ = 357851520. Its totient is φ = 111986160.

The previous prime is 231214507. The next prime is 231214519. The reversal of 231214514 is 415412132.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 231214514.

It is not an unprimeable number, because it can be changed into a prime (231214519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5432 + ... + 22179.

It is an arithmetic number, because the mean of its divisors is an integer number (22365720).

Almost surely, 2231214514 is an apocalyptic number.

231214514 is a deficient number, since it is larger than the sum of its proper divisors (126637006).

231214514 is a wasteful number, since it uses less digits than its factorization.

231214514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27745.

The product of its digits is 960, while the sum is 23.

The square root of 231214514 is about 15205.7395084882. The cubic root of 231214514 is about 613.7691149855.

Adding to 231214514 its reverse (415412132), we get a palindrome (646626646).

The spelling of 231214514 in words is "two hundred thirty-one million, two hundred fourteen thousand, five hundred fourteen".

Divisors: 1 2 53 79 106 158 4187 8374 27611 55222 1463383 2181269 2926766 4362538 115607257 231214514