Search a number
-
+
213410221 = 4719123773
BaseRepresentation
bin11001011100001…
…10000110101101
3112212120100210021
430232012012231
5414113111341
633102042141
75200646143
oct1456060655
9485510707
10213410221
11aa512292
125b579351
13352a114b
14204b3593
1513b079d1
hexcb861ad

213410221 has 8 divisors (see below), whose sum is σ = 219101184. Its totient is φ = 207767280.

The previous prime is 213410203. The next prime is 213410233. The reversal of 213410221 is 122014312.

213410221 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 213410221 - 213 = 213402029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213410195 and 213410204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213410251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2910 + ... + 20863.

It is an arithmetic number, because the mean of its divisors is an integer number (27387648).

Almost surely, 2213410221 is an apocalyptic number.

It is an amenable number.

213410221 is a deficient number, since it is larger than the sum of its proper divisors (5690963).

213410221 is a wasteful number, since it uses less digits than its factorization.

213410221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24011.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 213410221 is about 14608.5666990297. The cubic root of 213410221 is about 597.5924085759.

Adding to 213410221 its reverse (122014312), we get a palindrome (335424533).

The spelling of 213410221 in words is "two hundred thirteen million, four hundred ten thousand, two hundred twenty-one".

Divisors: 1 47 191 8977 23773 1117331 4540643 213410221