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202012202020 = 22512779532363
BaseRepresentation
bin1011110000100011011…
…1011001010000100100
3201022102120121010202011
42330020313121100210
511302210110431040
6232445250324004
720411023246126
oct2741067312044
9638376533664
10202012202020
1178744692382
1233199589604
1316085179465
149ac5435216
1553c4e473ea
hex2f08dd9424

202012202020 has 24 divisors (see below), whose sum is σ = 427565988864. Its totient is φ = 80168620896.

The previous prime is 202012202009. The next prime is 202012202131. The reversal of 202012202020 is 20202210202.

202012202020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39763642 + ... + 39768721.

It is an arithmetic number, because the mean of its divisors is an integer number (17815249536).

Almost surely, 2202012202020 is an apocalyptic number.

202012202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202012202020 is an abundant number, since it is smaller than the sum of its proper divisors (225553786844).

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

202012202020 is a wasteful number, since it uses less digits than its factorization.

202012202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79532499 (or 79532497 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 202012202020 its reverse (20202210202), we get a palindrome (222214412222).

The spelling of 202012202020 in words is "two hundred two billion, twelve million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 127 254 508 635 1270 2540 79532363 159064726 318129452 397661815 795323630 1590647260 10100610101 20201220202 40402440404 50503050505 101006101010 202012202020