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2013221033 = 52312173163
BaseRepresentation
bin111011111111111…
…0101000010101001
312012022020020001222
41313333311002221
513110341033113
6531434151425
7100614045035
oct16777650251
95168206058
102013221033
1194345783a
12482282575
13261126065
1415153b1c5
15bbb24e08
hex77ff50a9

2013221033 has 8 divisors (see below), whose sum is σ = 2019366048. Its totient is φ = 2007085824.

The previous prime is 2013221011. The next prime is 2013221053. The reversal of 2013221033 is 3301223102.

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 2013221033 - 28 = 2013220777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2013221053) 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, 634910 + ... + 638072.

It is an arithmetic number, because the mean of its divisors is an integer number (252420756).

Almost surely, 22013221033 is an apocalyptic number.

It is an amenable number.

2013221033 is a deficient number, since it is larger than the sum of its proper divisors (6145015).

2013221033 is a wasteful number, since it uses less digits than its factorization.

2013221033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4903.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2013221033 is about 44868.9317122661. The cubic root of 2013221033 is about 1262.6911977592.

Adding to 2013221033 its reverse (3301223102), we get a palindrome (5314444135).

The spelling of 2013221033 in words is "two billion, thirteen million, two hundred twenty-one thousand, thirty-three".

Divisors: 1 523 1217 3163 636491 1654249 3849371 2013221033