Search a number
-
+
13220201311 = 191015968491
BaseRepresentation
bin11000100111111110…
…00100001101011111
31021010100010210212121
430103333010031133
5204033332420221
610023454443411
7645415566652
oct142377041537
937110123777
1013220201311
115674505a09
12268b503567
131328bacc35
148d5ac9899
1552594ba41
hex313fc435f

13220201311 has 8 divisors (see below), whose sum is σ = 13917574400. Its totient is φ = 12522985560.

The previous prime is 13220201237. The next prime is 13220201329. The reversal of 13220201311 is 11310202231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13220201311 - 215 = 13220168543 is a prime.

It is a super-2 number, since 2×132202013112 (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 (13220201381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158776 + ... + 227266.

It is an arithmetic number, because the mean of its divisors is an integer number (1739696800).

Almost surely, 213220201311 is an apocalyptic number.

13220201311 is a deficient number, since it is larger than the sum of its proper divisors (697373089).

13220201311 is a wasteful number, since it uses less digits than its factorization.

13220201311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78669.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13220201311 its reverse (11310202231), we get a palindrome (24530403542).

The spelling of 13220201311 in words is "thirteen billion, two hundred twenty million, two hundred one thousand, three hundred eleven".

Divisors: 1 19 10159 68491 193021 1301329 695800069 13220201311