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213201223 = 1985913063
BaseRepresentation
bin11001011010100…
…11000101000111
3112212011202002121
430231103011013
5414034414343
633053350411
75166115624
oct1455230507
9485152077
10213201223
11aa38a264
125b498407
1335229c91
142045b34b
1513ab5aed
hexcb53147

213201223 has 8 divisors (see below), whose sum is σ = 224700800. Its totient is φ = 201729528.

The previous prime is 213201217. The next prime is 213201227. The reversal of 213201223 is 322102312.

213201223 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 213201223 - 213 = 213193031 is a prime.

It is a super-2 number, since 2×2132012232 = 90909522977391458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213201197 and 213201206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213201227) 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, 9790 + ... + 22852.

It is an arithmetic number, because the mean of its divisors is an integer number (28087600).

Almost surely, 2213201223 is an apocalyptic number.

213201223 is a deficient number, since it is larger than the sum of its proper divisors (11499577).

213201223 is a wasteful number, since it uses less digits than its factorization.

213201223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13941.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 213201223 is about 14601.4116783275. The cubic root of 213201223 is about 597.3972657645.

Adding to 213201223 its reverse (322102312), we get a palindrome (535303535).

The spelling of 213201223 in words is "two hundred thirteen million, two hundred one thousand, two hundred twenty-three".

Divisors: 1 19 859 13063 16321 248197 11221117 213201223