Search a number
-
+
14312143 = 131109253
BaseRepresentation
bin110110100110…
…001011001111
3222221010120101
4312212023033
512130442033
61230431531
7232436236
oct66461317
928833511
1014312143
118095a1a
1249625a7
132c71531
141c87b1d
1513ca97d
hexda62cf

14312143 has 4 divisors (see below), whose sum is σ = 14421528. Its totient is φ = 14202760.

The previous prime is 14312131. The next prime is 14312153. The reversal of 14312143 is 34121341.

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

It is a cyclic number.

It is not a de Polignac number, because 14312143 - 221 = 12214991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14312143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14312153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54496 + ... + 54757.

It is an arithmetic number, because the mean of its divisors is an integer number (3605382).

Almost surely, 214312143 is an apocalyptic number.

14312143 is a deficient number, since it is larger than the sum of its proper divisors (109385).

14312143 is a wasteful number, since it uses less digits than its factorization.

14312143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109384.

The product of its digits is 288, while the sum is 19.

The square root of 14312143 is about 3783.1393048631. The cubic root of 14312143 is about 242.7922886472.

Adding to 14312143 its reverse (34121341), we get a palindrome (48433484).

The spelling of 14312143 in words is "fourteen million, three hundred twelve thousand, one hundred forty-three".

Divisors: 1 131 109253 14312143