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20524808052 = 22347831071019
BaseRepresentation
bin10011000111010111…
…111011011101110100
31221222102001021120000
4103013113323131310
5314013322324202
613232353511300
71324423663350
oct230727733564
957872037500
1020524808052
1187827a0091
123b89872530
131c21337748
14dc9c98460
15801d8491c
hex4c75fb774

20524808052 has 240 divisors, whose sum is σ = 62701309440. Its totient is φ = 5733799488.

The previous prime is 20524808041. The next prime is 20524808053. The reversal of 20524808052 is 25080842502.

20524808052 is a `hidden beast` number, since 2 + 0 + 52 + 480 + 80 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 20524807998 and 20524808016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20524808053) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 20141599 + ... + 20142617.

It is an arithmetic number, because the mean of its divisors is an integer number (261255456).

Almost surely, 220524808052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20524808052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31350654720).

20524808052 is an abundant number, since it is smaller than the sum of its proper divisors (42176501388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20524808052 is a wasteful number, since it uses less digits than its factorization.

20524808052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232 (or 1221 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The spelling of 20524808052 in words is "twenty billion, five hundred twenty-four million, eight hundred eight thousand, fifty-two".