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20525034005 = 57283775649
BaseRepresentation
bin10011000111011000…
…110010101000010101
31221222102110202111122
4103013120302220111
5314013402042010
613232402413325
71324425624200
oct230730625025
957872422448
1020525034005
118782934923
123b89961245
131c213b6548
14dc9d16937
15801dcb855
hex4c7632a15

20525034005 has 12 divisors (see below), whose sum is σ = 28651272300. Its totient is φ = 14074308864.

The previous prime is 20525033999. The next prime is 20525034011. The reversal of 20525034005 is 50043052502.

It is an interprime number because it is at equal distance from previous prime (20525033999) and next prime (20525034011).

It can be written as a sum of positive squares in 2 ways, for example, as 3792835396 + 16732198609 = 61586^2 + 129353^2 .

It is not a de Polignac number, because 20525034005 - 210 = 20525032981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41887580 + ... + 41888069.

It is an arithmetic number, because the mean of its divisors is an integer number (2387606025).

Almost surely, 220525034005 is an apocalyptic number.

It is an amenable number.

20525034005 is a deficient number, since it is larger than the sum of its proper divisors (8126238295).

20525034005 is an equidigital number, since it uses as much as digits as its factorization.

20525034005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83775668 (or 83775661 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

Adding to 20525034005 its reverse (50043052502), we get a palindrome (70568086507).

The spelling of 20525034005 in words is "twenty billion, five hundred twenty-five million, thirty-four thousand, five".

Divisors: 1 5 7 35 49 245 83775649 418878245 586429543 2932147715 4105006801 20525034005