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20213301313 = 64591312943
BaseRepresentation
bin10010110100110011…
…101000000001000001
31221011200220002122101
4102310303220001001
5312344101120223
613141425110401
71313622140422
oct226463500101
957150802571
1020213301313
1186329774a7
123b01488401
131ba193b32a
14d9a76b649
157d48514ad
hex4b4ce8041

20213301313 has 4 divisors (see below), whose sum is σ = 20213678848. Its totient is φ = 20212923780.

The previous prime is 20213301299. The next prime is 20213301377. The reversal of 20213301313 is 31310331202.

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 not a de Polignac number, because 20213301313 - 29 = 20213300801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20213901313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91881 + ... + 221062.

It is an arithmetic number, because the mean of its divisors is an integer number (5053419712).

Almost surely, 220213301313 is an apocalyptic number.

It is an amenable number.

20213301313 is a deficient number, since it is larger than the sum of its proper divisors (377535).

20213301313 is an equidigital number, since it uses as much as digits as its factorization.

20213301313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377534.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20213301313 its reverse (31310331202), we get a palindrome (51523632515).

The spelling of 20213301313 in words is "twenty billion, two hundred thirteen million, three hundred one thousand, three hundred thirteen".

Divisors: 1 64591 312943 20213301313