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20523052055 = 511373146401
BaseRepresentation
bin10011000111010001…
…001110110000010111
31221222021202001210002
4103013101032300113
5314012400131210
613232252121515
71324403031002
oct230721166027
957867661702
1020523052055
118781800850
123b8916629b
131c20b713ac
14dc995c539
15801b394a5
hex4c744ec17

20523052055 has 8 divisors (see below), whose sum is σ = 26866540944. Its totient is φ = 14925856000.

The previous prime is 20523052019. The next prime is 20523052093. The reversal of 20523052055 is 55025032502.

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

It is not a de Polignac number, because 20523052055 - 214 = 20523035671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186573146 + ... + 186573255.

It is an arithmetic number, because the mean of its divisors is an integer number (3358317618).

Almost surely, 220523052055 is an apocalyptic number.

20523052055 is a deficient number, since it is larger than the sum of its proper divisors (6343488889).

20523052055 is a wasteful number, since it uses less digits than its factorization.

20523052055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373146417.

The product of its (nonzero) digits is 15000, while the sum is 29.

Adding to 20523052055 its reverse (55025032502), we get a palindrome (75548084557).

The spelling of 20523052055 in words is "twenty billion, five hundred twenty-three million, fifty-two thousand, fifty-five".

Divisors: 1 5 11 55 373146401 1865732005 4104610411 20523052055