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13330130221 = 19966985579
BaseRepresentation
bin11000110101000100…
…11010010100101101
31021101222222202222201
430122202122110231
5204300003131341
610042422541501
7651222144262
oct143242322455
937358882881
1013330130221
115720569151
122700297891
1313458bbb25
14906543269
15530413331
hex31a89a52d

13330130221 has 4 divisors (see below), whose sum is σ = 13397116000. Its totient is φ = 13263144444.

The previous prime is 13330130183. The next prime is 13330130239. The reversal of 13330130221 is 12203103331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13330130221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13330130521) 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, 33492591 + ... + 33492988.

It is an arithmetic number, because the mean of its divisors is an integer number (3349279000).

Almost surely, 213330130221 is an apocalyptic number.

It is an amenable number.

13330130221 is a deficient number, since it is larger than the sum of its proper divisors (66985779).

13330130221 is an equidigital number, since it uses as much as digits as its factorization.

13330130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66985778.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13330130221 its reverse (12203103331), we get a palindrome (25533233552).

The spelling of 13330130221 in words is "thirteen billion, three hundred thirty million, one hundred thirty thousand, two hundred twenty-one".

Divisors: 1 199 66985579 13330130221