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20532130130 = 252389270131
BaseRepresentation
bin10011000111110011…
…110111000101010010
31221222220211021120002
4103013303313011102
5314022211131010
613233214450002
71324543140461
oct230763670522
957886737502
1020532130130
118786941296
123b90203902
131c229cc435
14dcac429d8
1580282e1a5
hex4c7cf7152

20532130130 has 16 divisors (see below), whose sum is σ = 38564697024. Its totient is φ = 7855771440.

The previous prime is 20532130111. The next prime is 20532130139. The reversal of 20532130130 is 3103123502.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20532130139) 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, 44634836 + ... + 44635295.

It is an arithmetic number, because the mean of its divisors is an integer number (2410293564).

Almost surely, 220532130130 is an apocalyptic number.

20532130130 is a deficient number, since it is larger than the sum of its proper divisors (18032566894).

20532130130 is a wasteful number, since it uses less digits than its factorization.

20532130130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89270161.

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 20532130130 its reverse (3103123502), we get a palindrome (23635253632).

The spelling of 20532130130 in words is "twenty billion, five hundred thirty-two million, one hundred thirty thousand, one hundred thirty".

Divisors: 1 2 5 10 23 46 115 230 89270131 178540262 446350655 892701310 2053213013 4106426026 10266065065 20532130130