Search a number
-
+
213030312041 = 2971931021253
BaseRepresentation
bin1100011001100110011…
…0001001100001101001
3202100212110010010021002
43012121212021201221
511442241224441131
6241510442524345
721251042526641
oct3063146114151
9670773103232
10213030312041
118238906a528
12353535066b5
131711ca74ba1
14a44c89b521
15581c3b26cb
hex3199989869

213030312041 has 8 divisors (see below), whose sum is σ = 220407038280. Its totient is φ = 205655642752.

The previous prime is 213030312023. The next prime is 213030312067. The reversal of 213030312041 is 140213030312.

It can be written as a sum of positive squares in 4 ways, for example, as 6736305625 + 206294006416 = 82075^2 + 454196^2 .

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

It is not a de Polignac number, because 213030312041 - 226 = 212963203177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213030302041) 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, 302030 + ... + 719223.

It is an arithmetic number, because the mean of its divisors is an integer number (27550879785).

Almost surely, 2213030312041 is an apocalyptic number.

It is an amenable number.

213030312041 is a deficient number, since it is larger than the sum of its proper divisors (7376726239).

213030312041 is a wasteful number, since it uses less digits than its factorization.

213030312041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028475.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213030312041 its reverse (140213030312), we get a palindrome (353243342353).

The spelling of 213030312041 in words is "two hundred thirteen billion, thirty million, three hundred twelve thousand, forty-one".

Divisors: 1 29 7193 208597 1021253 29616337 7345872829 213030312041