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13220010511 = 34738098013
BaseRepresentation
bin11000100111111100…
…10101101000001111
31021010022210010010221
430103332111220033
5204033310314021
610023450412211
7645414143461
oct142376255017
937108703127
1013220010511
115674395624
12268b431067
131328b44136
148d5a7a131
15525910241
hex313f95a0f

13220010511 has 4 divisors (see below), whose sum is σ = 13258108872. Its totient is φ = 13181912152.

The previous prime is 13220010491. The next prime is 13220010527. The reversal of 13220010511 is 11501002231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11501002231 = 17676529543.

It is a cyclic number.

It is not a de Polignac number, because 13220010511 - 213 = 13220002319 is a prime.

It is a super-2 number, since 2×132200105112 (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 (13220020511) 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, 19048660 + ... + 19049353.

It is an arithmetic number, because the mean of its divisors is an integer number (3314527218).

Almost surely, 213220010511 is an apocalyptic number.

13220010511 is a deficient number, since it is larger than the sum of its proper divisors (38098361).

13220010511 is an equidigital number, since it uses as much as digits as its factorization.

13220010511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38098360.

The product of its (nonzero) digits is 60, while the sum is 16.

Adding to 13220010511 its reverse (11501002231), we get a palindrome (24721012742).

The spelling of 13220010511 in words is "thirteen billion, two hundred twenty million, ten thousand, five hundred eleven".

Divisors: 1 347 38098013 13220010511