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20120202102020 = 2252363016941687
BaseRepresentation
bin1001001001100100110010…
…11111111100010100000100
32122020110202110220222000012
410210302121133330110010
510114122133214231040
6110443032050205352
74144431236024666
oct444623137742404
978213673828005
1020120202102020
116457a25610419
12230b51ab83858
13b2c4333100a7
144d7b74372536
1524d58c95d865
hex124c997fc504

20120202102020 has 48 divisors (see below), whose sum is σ = 44096489918208. Its totient is φ = 7696941436800.

The previous prime is 20120202102019. The next prime is 20120202102029. The reversal of 20120202102020 is 2020120202102.

It is a super-3 number, since 3×201202021020203 (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 20120202101986 and 20120202102004.

It is not an unprimeable number, because it can be changed into a prime (20120202102029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572384 + ... + 6369303.

It is an arithmetic number, because the mean of its divisors is an integer number (918676873296).

Almost surely, 220120202102020 is an apocalyptic number.

20120202102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120202102020 is an abundant number, since it is smaller than the sum of its proper divisors (23976287816188).

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

20120202102020 is a wasteful number, since it uses less digits than its factorization.

20120202102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6948020 (or 6948018 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20120202102020 its reverse (2020120202102), we get a palindrome (22140322304122).

The spelling of 20120202102020 in words is "twenty trillion, one hundred twenty billion, two hundred two million, one hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 6301 12602 25204 31505 63010 126020 144923 289846 579692 724615 1449230 2898460 6941687 13883374 27766748 34708435 69416870 138833740 159658801 319317602 638635204 798294005 1596588010 3193176020 43739569787 87479139574 174958279148 218697848935 437395697870 874791395740 1006010105101 2012020210202 4024040420404 5030050525505 10060101051010 20120202102020