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13143302221 = 73160568213
BaseRepresentation
bin11000011110110011…
…01110000001001101
31020220222102221011011
430033121232001031
5203404141132341
610012110325221
7643463140240
oct141731560115
936828387134
1013143302221
115635062545
1226697b9811
131315c9710a
148c97cd257
1551dd0bb81
hex30f66e04d

13143302221 has 8 divisors (see below), whose sum is σ = 15505462784. Its totient is φ = 10902278160.

The previous prime is 13143302219. The next prime is 13143302239. The reversal of 13143302221 is 12220334131.

13143302221 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 13143302221 - 21 = 13143302219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13143302192 and 13143302201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143342221) 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, 30283890 + ... + 30284323.

It is an arithmetic number, because the mean of its divisors is an integer number (1938182848).

Almost surely, 213143302221 is an apocalyptic number.

It is an amenable number.

13143302221 is a deficient number, since it is larger than the sum of its proper divisors (2362160563).

13143302221 is an equidigital number, since it uses as much as digits as its factorization.

13143302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60568251.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13143302221 its reverse (12220334131), we get a palindrome (25363636352).

The spelling of 13143302221 in words is "thirteen billion, one hundred forty-three million, three hundred two thousand, two hundred twenty-one".

Divisors: 1 7 31 217 60568213 423977491 1877614603 13143302221