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213114223 = 730444889
BaseRepresentation
bin11001011001111…
…01110101101111
3112212000022202101
430230331311233
5414024123343
633051435531
75165304160
oct1454756557
9485008671
10213114223
11aa32a963
125b455ba7
13351c94ba
1420437767
1513a99e4d
hexcb3dd6f

213114223 has 4 divisors (see below), whose sum is σ = 243559120. Its totient is φ = 182669328.

The previous prime is 213114221. The next prime is 213114263. The reversal of 213114223 is 322411312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213114223 - 21 = 213114221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213114223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213114221) 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 3 ways as a sum of consecutive naturals, for example, 15222438 + ... + 15222451.

It is an arithmetic number, because the mean of its divisors is an integer number (60889780).

Almost surely, 2213114223 is an apocalyptic number.

213114223 is a deficient number, since it is larger than the sum of its proper divisors (30444897).

213114223 is an equidigital number, since it uses as much as digits as its factorization.

213114223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30444896.

The product of its digits is 288, while the sum is 19.

The square root of 213114223 is about 14598.4322103437. The cubic root of 213114223 is about 597.3159956971.

Adding to 213114223 its reverse (322411312), we get a palindrome (535525535).

The spelling of 213114223 in words is "two hundred thirteen million, one hundred fourteen thousand, two hundred twenty-three".

Divisors: 1 7 30444889 213114223