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13333122031 = 61218575771
BaseRepresentation
bin11000110101011011…
…10100101111101111
31021102012121202222111
430122231310233233
5204301234401111
610043011024451
7651256444615
oct143255645757
937365552874
1013333122031
115722221a19
12270129b127
1313463c8828
14906ac16b5
15530804a21
hex31ab74bef

13333122031 has 4 divisors (see below), whose sum is σ = 13551697864. Its totient is φ = 13114546200.

The previous prime is 13333122029. The next prime is 13333122043. The reversal of 13333122031 is 13022133331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13333122031 - 21 = 13333122029 is a prime.

It is a super-2 number, since 2×133331220312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13333121993 and 13333122011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13333125031) 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, 109287825 + ... + 109287946.

It is an arithmetic number, because the mean of its divisors is an integer number (3387924466).

Almost surely, 213333122031 is an apocalyptic number.

13333122031 is a deficient number, since it is larger than the sum of its proper divisors (218575833).

13333122031 is an equidigital number, since it uses as much as digits as its factorization.

13333122031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218575832.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13333122031 its reverse (13022133331), we get a palindrome (26355255362).

The spelling of 13333122031 in words is "thirteen billion, three hundred thirty-three million, one hundred twenty-two thousand, thirty-one".

Divisors: 1 61 218575771 13333122031