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213210011215 = 5223459141651
BaseRepresentation
bin1100011010010001001…
…1101001011001001111
3202101022222020210012001
43012210103221121033
511443123230324330
6241540342253131
721255354123145
oct3064423513117
9671288223161
10213210011215
1182470547143
12353a37271a7
131714b071b66
14a4686b7595
15582d05b9ca
hex31a44e964f

213210011215 has 16 divisors (see below), whose sum is σ = 257061482496. Its totient is φ = 169762068000.

The previous prime is 213210011213. The next prime is 213210011233. The reversal of 213210011215 is 512110012312.

213210011215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213210011215 - 21 = 213210011213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213210011192 and 213210011201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213210011213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5098140 + ... + 5139790.

It is an arithmetic number, because the mean of its divisors is an integer number (16066342656).

Almost surely, 2213210011215 is an apocalyptic number.

213210011215 is a deficient number, since it is larger than the sum of its proper divisors (43851471281).

213210011215 is a wasteful number, since it uses less digits than its factorization.

213210011215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46470.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 213210011215 its reverse (512110012312), we get a palindrome (725320023527).

The spelling of 213210011215 in words is "two hundred thirteen billion, two hundred ten million, eleven thousand, two hundred fifteen".

Divisors: 1 5 223 1115 4591 22955 41651 208255 1023793 5118965 9288173 46440865 191219741 956098705 42642002243 213210011215