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20200331484 = 2232561120319
BaseRepresentation
bin10010110100000010…
…001001100011011100
31221010210111011101100
4102310002021203130
5312332241101414
613140243113100
71313403661464
oct226402114334
957123434340
1020200331484
118626619033
123ab9072790
131b9c049a88
14d98b52ba4
157d363d609
hex4b40898dc

20200331484 has 18 divisors (see below), whose sum is σ = 51061949120. Its totient is φ = 6733443816.

The previous prime is 20200331483. The next prime is 20200331491. The reversal of 20200331484 is 48413300202.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200331483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 280560124 + ... + 280560195.

Almost surely, 220200331484 is an apocalyptic number.

It is an amenable number.

20200331484 is an abundant number, since it is smaller than the sum of its proper divisors (30861617636).

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

20200331484 is a wasteful number, since it uses less digits than its factorization.

20200331484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561120329 (or 561120324 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 20200331484 its reverse (48413300202), we get a palindrome (68613631686).

The spelling of 20200331484 in words is "twenty billion, two hundred million, three hundred thirty-one thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 18 36 561120319 1122240638 1683360957 2244481276 3366721914 5050082871 6733443828 10100165742 20200331484