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2013221002 = 21377431577
BaseRepresentation
bin111011111111111…
…0101000010001010
312012022020020000211
41313333311002022
513110341033002
6531434151334
7100614044662
oct16777650212
95168206024
102013221002
11943457811
1248228254a
13261126040
1415153b1a2
15bbb24dd7
hex77ff508a

2013221002 has 8 divisors (see below), whose sum is σ = 3252126276. Its totient is φ = 929178912.

The previous prime is 2013220997. The next prime is 2013221011. The reversal of 2013221002 is 2001223102.

It can be written as a sum of positive squares in 2 ways, for example, as 2002652001 + 10569001 = 44751^2 + 3251^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

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, 38715763 + ... + 38715814.

Almost surely, 22013221002 is an apocalyptic number.

2013221002 is a deficient number, since it is larger than the sum of its proper divisors (1238905274).

2013221002 is a wasteful number, since it uses less digits than its factorization.

2013221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77431592.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2013221002 is about 44868.9313668155. The cubic root of 2013221002 is about 1262.6911912781.

Adding to 2013221002 its reverse (2001223102), we get a palindrome (4014444104).

The spelling of 2013221002 in words is "two billion, thirteen million, two hundred twenty-one thousand, two".

Divisors: 1 2 13 26 77431577 154863154 1006610501 2013221002