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20343001343 = 722912690581
BaseRepresentation
bin10010111100100010…
…011001000011111111
31221111201221112122012
4102330202121003333
5313130302020333
613202341041435
71320055441550
oct227442310377
957451845565
1020343001343
11869a104005
123b389b627b
131bc2780402
14dada90327
157e0e20e48
hex4bc8990ff

20343001343 has 8 divisors (see below), whose sum is σ = 23350670880. Its totient is φ = 17360713440.

The previous prime is 20343001303. The next prime is 20343001369. The reversal of 20343001343 is 34310034302.

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

It is not a de Polignac number, because 20343001343 - 28 = 20343001087 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 (20343001303) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6343688 + ... + 6346893.

It is an arithmetic number, because the mean of its divisors is an integer number (2918833860).

Almost surely, 220343001343 is an apocalyptic number.

20343001343 is a deficient number, since it is larger than the sum of its proper divisors (3007669537).

20343001343 is a wasteful number, since it uses less digits than its factorization.

20343001343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12690817.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 20343001343 its reverse (34310034302), we get a palindrome (54653035645).

The spelling of 20343001343 in words is "twenty billion, three hundred forty-three million, one thousand, three hundred forty-three".

Divisors: 1 7 229 1603 12690581 88834067 2906143049 20343001343