Base | Representation |
---|---|
bin | 11000101000001110… |
… | …00111110000110101 |
3 | 1021010111010002120210 |
4 | 30110013013300311 |
5 | 204034403004023 |
6 | 10024012020033 |
7 | 645442543350 |
oct | 142407076065 |
9 | 37114102523 |
10 | 13222313013 |
11 | 5675718518 |
12 | 2690161619 |
13 | 132946c170 |
14 | 8d60b9297 |
15 | 525c17593 |
hex | 3141c7c35 |
13222313013 has 32 divisors (see below), whose sum is σ = 21908862976. Its totient is φ = 6906679488.
The previous prime is 13222312991. The next prime is 13222313017. The reversal of 13222313013 is 31031322231.
It is not a de Polignac number, because 13222313013 - 28 = 13222312757 is a prime.
It is a super-2 number, since 2×132223130132 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13222313017) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206995 + ... + 263232.
It is an arithmetic number, because the mean of its divisors is an integer number (684651968).
Almost surely, 213222313013 is an apocalyptic number.
13222313013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
13222313013 is a deficient number, since it is larger than the sum of its proper divisors (8686549963).
13222313013 is a wasteful number, since it uses less digits than its factorization.
13222313013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 470353.
The product of its (nonzero) digits is 648, while the sum is 21.
Adding to 13222313013 its reverse (31031322231), we get a palindrome (44253635244).
The spelling of 13222313013 in words is "thirteen billion, two hundred twenty-two million, three hundred thirteen thousand, thirteen".
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