Search a number
-
+
13223210031 = 321469245559
BaseRepresentation
bin11000101000010101…
…00010110000101111
31021010112210200001200
430110022202300233
5204040120210111
610024043140543
7645453300513
oct142412426057
937115720050
1013223210031
115676180459
122690514753
1313296c4545
148d6270143
15525d43256
hex3142a2c2f

13223210031 has 6 divisors (see below), whose sum is σ = 19100192280. Its totient is φ = 8815473348.

The previous prime is 13223210017. The next prime is 13223210051. The reversal of 13223210031 is 13001232231.

It is not a de Polignac number, because 13223210031 - 230 = 12149468207 is a prime.

It is a super-2 number, since 2×132232100312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13223209986 and 13223210013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223210051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 734622771 + ... + 734622788.

It is an arithmetic number, because the mean of its divisors is an integer number (3183365380).

Almost surely, 213223210031 is an apocalyptic number.

13223210031 is a deficient number, since it is larger than the sum of its proper divisors (5876982249).

13223210031 is a wasteful number, since it uses less digits than its factorization.

13223210031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469245565 (or 1469245562 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13223210031 its reverse (13001232231), we get a palindrome (26224442262).

The spelling of 13223210031 in words is "thirteen billion, two hundred twenty-three million, two hundred ten thousand, thirty-one".

Divisors: 1 3 9 1469245559 4407736677 13223210031