Search a number
-
+
13022400943 = 18477050569
BaseRepresentation
bin11000010000011001…
…00001000110101111
31020121112221111210001
430020030201012233
5203132213312233
65552111125131
7640464403336
oct141014410657
936545844701
1013022400943
115582895632
1226352137a7
1312c6c15bb6
148b771ad1d
155133c927d
hex3083211af

13022400943 has 4 divisors (see below), whose sum is σ = 13029453360. Its totient is φ = 13015348528.

The previous prime is 13022400907. The next prime is 13022400947. The reversal of 13022400943 is 34900422031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34900422031 = 109731814423.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13022400943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13022400947) 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, 3523438 + ... + 3527131.

It is an arithmetic number, because the mean of its divisors is an integer number (3257363340).

Almost surely, 213022400943 is an apocalyptic number.

13022400943 is a deficient number, since it is larger than the sum of its proper divisors (7052417).

13022400943 is an equidigital number, since it uses as much as digits as its factorization.

13022400943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7052416.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 13022400943 its reverse (34900422031), we get a palindrome (47922822974).

The spelling of 13022400943 in words is "thirteen billion, twenty-two million, four hundred thousand, nine hundred forty-three".

Divisors: 1 1847 7050569 13022400943