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2110213221 = 31036829169
BaseRepresentation
bin111110111000111…
…0100110001100101
312110001201221100020
41331301310301211
513310203310341
6545221105353
7103202342064
oct17561646145
95401657306
102110213221
11993184476
124aa858259
1327825579c
141603881db
15c53d3566
hex7dc74c65

2110213221 has 8 divisors (see below), whose sum is σ = 2840934720. Its totient is φ = 1393150272.

The previous prime is 2110213219. The next prime is 2110213241. The reversal of 2110213221 is 1223120112.

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

It is not a de Polignac number, because 2110213221 - 21 = 2110213219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2110213221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110213201) 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, 3414276 + ... + 3414893.

It is an arithmetic number, because the mean of its divisors is an integer number (355116840).

Almost surely, 22110213221 is an apocalyptic number.

It is an amenable number.

2110213221 is a deficient number, since it is larger than the sum of its proper divisors (730721499).

2110213221 is a wasteful number, since it uses less digits than its factorization.

2110213221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6829275.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2110213221 is about 45937.0571652125. The cubic root of 2110213221 is about 1282.6518145771.

Adding to 2110213221 its reverse (1223120112), we get a palindrome (3333333333).

The spelling of 2110213221 in words is "two billion, one hundred ten million, two hundred thirteen thousand, two hundred twenty-one".

Divisors: 1 3 103 309 6829169 20487507 703404407 2110213221