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20200536020 = 2257144289543
BaseRepresentation
bin10010110100000010…
…111011011111010100
31221010210212112221202
4102310002323133110
5312332314123040
613140251332032
71313405503010
oct226402733724
957123775852
1020200536020
118626748775
123ab9151018
131b9c0bbbc2
14d98ba7540
157d367e015
hex4b40bb7d4

20200536020 has 24 divisors (see below), whose sum is σ = 48481286784. Its totient is φ = 6925898016.

The previous prime is 20200536019. The next prime is 20200536023. The reversal of 20200536020 is 2063500202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20200535983 and 20200536001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200536023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72144632 + ... + 72144911.

It is an arithmetic number, because the mean of its divisors is an integer number (2020053616).

Almost surely, 220200536020 is an apocalyptic number.

20200536020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200536020 is an abundant number, since it is smaller than the sum of its proper divisors (28280750764).

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

20200536020 is a wasteful number, since it uses less digits than its factorization.

20200536020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144289559 (or 144289557 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The spelling of 20200536020 in words is "twenty billion, two hundred million, five hundred thirty-six thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 144289543 288579086 577158172 721447715 1010026801 1442895430 2020053602 2885790860 4040107204 5050134005 10100268010 20200536020