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2020638252 = 223168386521
BaseRepresentation
bin111100001110000…
…0111111000101100
312012211012001120210
41320130013320230
513114240411002
6532301142420
7101034066423
oct17034077054
95184161523
102020638252
11947663476
1248485aa10
13262822149
1415250c2ba
15bc5dc96c
hex78707e2c

2020638252 has 12 divisors (see below), whose sum is σ = 4714822616. Its totient is φ = 673546080.

The previous prime is 2020638223. The next prime is 2020638283. The reversal of 2020638252 is 2528360202.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84193249 + ... + 84193272.

Almost surely, 22020638252 is an apocalyptic number.

It is an amenable number.

2020638252 is an abundant number, since it is smaller than the sum of its proper divisors (2694184364).

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

2020638252 is a wasteful number, since it uses less digits than its factorization.

2020638252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168386528 (or 168386526 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 2020638252 is about 44951.5100080075. The cubic root of 2020638252 is about 1264.2399892484.

Adding to 2020638252 its reverse (2528360202), we get a palindrome (4548998454).

The spelling of 2020638252 in words is "two billion, twenty million, six hundred thirty-eight thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 168386521 336773042 505159563 673546084 1010319126 2020638252