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13012221001 = 138312059519
BaseRepresentation
bin11000001111001011…
…01011110001001001
31020120211210022112011
430013211223301021
5203122112033001
65551105015521
7640312024243
oct140745536111
936524708464
1013012221001
11557807225a
1226319245a1
1312c4a90470
148b622b093
15512567d51
hex30796bc49

13012221001 has 8 divisors (see below), whose sum is σ = 14181995520. Its totient is φ = 11866565712.

The previous prime is 13012220911. The next prime is 13012221007. The reversal of 13012221001 is 10012221031.

13012221001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13012221001 - 211 = 13012218953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13012221007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6028681 + ... + 6030838.

It is an arithmetic number, because the mean of its divisors is an integer number (1772749440).

Almost surely, 213012221001 is an apocalyptic number.

It is an amenable number.

13012221001 is a deficient number, since it is larger than the sum of its proper divisors (1169774519).

13012221001 is a wasteful number, since it uses less digits than its factorization.

13012221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12059615.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 13012221001 its reverse (10012221031), we get a palindrome (23024442032).

The spelling of 13012221001 in words is "thirteen billion, twelve million, two hundred twenty-one thousand, one".

Divisors: 1 13 83 1079 12059519 156773747 1000940077 13012221001