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13222330031 = 32174110143
BaseRepresentation
bin11000101000001110…
…01011111010101111
31021010111010221221002
430110013023322233
5204034404030111
610024012230515
7645442644101
oct142407137257
937114127832
1013222330031
11567572a289
12269016b43b
131329476b31
148d60c1571
15525c1c63b
hex3141cbeaf

13222330031 has 4 divisors (see below), whose sum is σ = 13226443392. Its totient is φ = 13218216672.

The previous prime is 13222330013. The next prime is 13222330081. The reversal of 13222330031 is 13003322231.

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 13222330031 - 214 = 13222313647 is a prime.

It is a super-2 number, since 2×132223300312 (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 = 13222329985 and 13222330012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222330081) 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, 2051855 + ... + 2058288.

It is an arithmetic number, because the mean of its divisors is an integer number (3306610848).

Almost surely, 213222330031 is an apocalyptic number.

13222330031 is a deficient number, since it is larger than the sum of its proper divisors (4113361).

13222330031 is an equidigital number, since it uses as much as digits as its factorization.

13222330031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4113360.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 13222330031 its reverse (13003322231), we get a palindrome (26225652262).

The spelling of 13222330031 in words is "thirteen billion, two hundred twenty-two million, three hundred thirty thousand, thirty-one".

Divisors: 1 3217 4110143 13222330031