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2013244221 = 31109605123
BaseRepresentation
bin111011111111111…
…1010101100111101
312012022021101212210
41313333322230331
513110342303341
6531434451033
7100614202452
oct16777725475
95168241783
102013244221
119434731aa
12482293a79
13261133791
14151545829
15bbb2bc16
hex77ffab3d

2013244221 has 8 divisors (see below), whose sum is σ = 2686750560. Its totient is φ = 1340950352.

The previous prime is 2013244217. The next prime is 2013244229. The reversal of 2013244221 is 1224423102.

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 2013244221 - 22 = 2013244217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013244229) 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, 299235 + ... + 305888.

It is an arithmetic number, because the mean of its divisors is an integer number (335843820).

Almost surely, 22013244221 is an apocalyptic number.

It is an amenable number.

2013244221 is a deficient number, since it is larger than the sum of its proper divisors (673506339).

2013244221 is a wasteful number, since it uses less digits than its factorization.

2013244221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606235.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2013244221 is about 44869.1901085812. The cubic root of 2013244221 is about 1262.6960455744.

Adding to 2013244221 its reverse (1224423102), we get a palindrome (3237667323).

The spelling of 2013244221 in words is "two billion, thirteen million, two hundred forty-four thousand, two hundred twenty-one".

Divisors: 1 3 1109 3327 605123 1815369 671081407 2013244221