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20320203295 = 57580577237
BaseRepresentation
bin10010111011001011…
…011011001000011111
31221110011001021121001
4102323023123020133
5313103433001140
613200204251131
71316360610130
oct227313331037
957404037531
1020320203295
118688252547
123b31240aa7
131bbab2a542
14daaa37c87
157dde1ae9a
hex4bb2db21f

20320203295 has 8 divisors (see below), whose sum is σ = 27867707424. Its totient is φ = 13933853664.

The previous prime is 20320203257. The next prime is 20320203301. The reversal of 20320203295 is 59230202302.

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 20320203295 - 231 = 18172719647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290288584 + ... + 290288653.

It is an arithmetic number, because the mean of its divisors is an integer number (3483463428).

Almost surely, 220320203295 is an apocalyptic number.

20320203295 is a deficient number, since it is larger than the sum of its proper divisors (7547504129).

20320203295 is an equidigital number, since it uses as much as digits as its factorization.

20320203295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580577249.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 20320203295 its reverse (59230202302), we get a palindrome (79550405597).

The spelling of 20320203295 in words is "twenty billion, three hundred twenty million, two hundred three thousand, two hundred ninety-five".

Divisors: 1 5 7 35 580577237 2902886185 4064040659 20320203295