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13030302221 = 85991151531
BaseRepresentation
bin11000010001010101…
…01010001000001101
31020122002210221021222
430020222222020031
5203141224132341
65552552333125
7640621512206
oct141052521015
936562727258
1013030302221
1155872a1a12
1226379a41a5
1312c8751401
148b87b65ad
15513e3a44b
hex308aaa20d

13030302221 has 4 divisors (see below), whose sum is σ = 13030539744. Its totient is φ = 13030064700.

The previous prime is 13030302191. The next prime is 13030302223. The reversal of 13030302221 is 12220303031.

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 not a de Polignac number, because 13030302221 - 26 = 13030302157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13030302221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13030302223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10226 + ... + 161756.

It is an arithmetic number, because the mean of its divisors is an integer number (3257634936).

Almost surely, 213030302221 is an apocalyptic number.

It is an amenable number.

13030302221 is a deficient number, since it is larger than the sum of its proper divisors (237523).

13030302221 is an equidigital number, since it uses as much as digits as its factorization.

13030302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237522.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13030302221 its reverse (12220303031), we get a palindrome (25250605252).

The spelling of 13030302221 in words is "thirteen billion, thirty million, three hundred two thousand, two hundred twenty-one".

Divisors: 1 85991 151531 13030302221