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20315043327 = 322361949057
BaseRepresentation
bin10010111010110111…
…101111010111111111
31221102210100010110010
4102322313233113333
5313101122341302
613155501514303
71316266006365
oct227267572777
957383303403
1020315043327
118685348807
123b2b572993
131bb9a419c7
14daa093635
157dd74c16c
hex4badef5ff

20315043327 has 16 divisors (see below), whose sum is σ = 27252700160. Its totient is φ = 13460573952.

The previous prime is 20315043293. The next prime is 20315043347. The reversal of 20315043327 is 72334051302.

It is not a de Polignac number, because 20315043327 - 26 = 20315043263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20315043294 and 20315043303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20315043347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389583 + ... + 438639.

It is an arithmetic number, because the mean of its divisors is an integer number (1703293760).

Almost surely, 220315043327 is an apocalyptic number.

20315043327 is a deficient number, since it is larger than the sum of its proper divisors (6937656833).

20315043327 is a wasteful number, since it uses less digits than its factorization.

20315043327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49902.

The product of its (nonzero) digits is 15120, while the sum is 30.

Adding to 20315043327 its reverse (72334051302), we get a palindrome (92649094629).

The spelling of 20315043327 in words is "twenty billion, three hundred fifteen million, forty-three thousand, three hundred twenty-seven".

Divisors: 1 3 223 619 669 1857 49057 138037 147171 414111 10939711 30366283 32819133 91098849 6771681109 20315043327