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14144431031 = 105509134059
BaseRepresentation
bin11010010110001001…
…01110001110110111
31100111202020112200222
431023010232032313
5212431433243111
610255312124555
71010340452153
oct151304561667
940452215628
1014144431031
115aa9187425
1228a8b3675b
13144550b023
14982752063
1557bb627db
hex34b12e3b7

14144431031 has 4 divisors (see below), whose sum is σ = 14144670600. Its totient is φ = 14144191464.

The previous prime is 14144431013. The next prime is 14144431099. The reversal of 14144431031 is 13013444141.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13013444141 = 25151846391.

It is a cyclic number.

It is not a de Polignac number, because 14144431031 - 210 = 14144430007 is a prime.

It is a super-2 number, since 2×141444310312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14144430031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38480 + ... + 172538.

It is an arithmetic number, because the mean of its divisors is an integer number (3536167650).

Almost surely, 214144431031 is an apocalyptic number.

14144431031 is a deficient number, since it is larger than the sum of its proper divisors (239569).

14144431031 is a wasteful number, since it uses less digits than its factorization.

14144431031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239568.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 14144431031 its reverse (13013444141), we get a palindrome (27157875172).

The spelling of 14144431031 in words is "fourteen billion, one hundred forty-four million, four hundred thirty-one thousand, thirty-one".

Divisors: 1 105509 134059 14144431031