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20020202213 = 111820018383
BaseRepresentation
bin10010101001010011…
…000000101011100101
31220200020112122110212
4102221103000223211
5312000132432323
613110330225205
71306055624324
oct225123005345
956606478425
1020020202213
118543978270
123a68885205
131b7092c0cb
14d7cc640bb
157c290bb78
hex4a94c0ae5

20020202213 has 4 divisors (see below), whose sum is σ = 21840220608. Its totient is φ = 18200183820.

The previous prime is 20020202161. The next prime is 20020202221. The reversal of 20020202213 is 31220202002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20020202213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020202233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910009181 + ... + 910009202.

It is an arithmetic number, because the mean of its divisors is an integer number (5460055152).

Almost surely, 220020202213 is an apocalyptic number.

It is an amenable number.

20020202213 is a deficient number, since it is larger than the sum of its proper divisors (1820018395).

20020202213 is a wasteful number, since it uses less digits than its factorization.

20020202213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820018394.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20020202213 its reverse (31220202002), we get a palindrome (51240404215).

The spelling of 20020202213 in words is "twenty billion, twenty million, two hundred two thousand, two hundred thirteen".

Divisors: 1 11 1820018383 20020202213