Base | Representation |
---|---|
bin | 11000101000001100… |
… | …11001001000101111 |
3 | 1021010110202101121101 |
4 | 30110012121020233 |
5 | 204034330401111 |
6 | 10024003543531 |
7 | 645441116506 |
oct | 142406311057 |
9 | 37113671541 |
10 | 13222122031 |
11 | 56755a7a88 |
12 | 269008aba7 |
13 | 1329403261 |
14 | 8d606983d |
15 | 525bcabc1 |
hex | 31419922f |
13222122031 has 4 divisors (see below), whose sum is σ = 13252241200. Its totient is φ = 13192002864.
The previous prime is 13222121993. The next prime is 13222122049. The reversal of 13222122031 is 13022122231.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13022122231 = 28403 ⋅458477.
It is a cyclic number.
It is not a de Polignac number, because 13222122031 - 215 = 13222089263 is a prime.
It is a super-2 number, since 2×132221220312 (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 (13222122071) 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, 15058926 + ... + 15059803.
It is an arithmetic number, because the mean of its divisors is an integer number (3313060300).
Almost surely, 213222122031 is an apocalyptic number.
13222122031 is a deficient number, since it is larger than the sum of its proper divisors (30119169).
13222122031 is an equidigital number, since it uses as much as digits as its factorization.
13222122031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30119168.
The product of its (nonzero) digits is 288, while the sum is 19.
Adding to 13222122031 its reverse (13022122231), we get a palindrome (26244244262).
The spelling of 13222122031 in words is "thirteen billion, two hundred twenty-two million, one hundred twenty-two thousand, thirty-one".
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