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2020011210020 = 225101000560501
BaseRepresentation
bin11101011001010010000…
…011001111010100100100
321011010000001110122110202
4131121102003033110210
5231043440332210040
64143551430410032
7265640521661156
oct35312203172444
97133001418422
102020011210020
11709755737091
122875a9800918
1311864236554b
146daaa452ad6
1537829c10015
hex1d6520cf524

2020011210020 has 12 divisors (see below), whose sum is σ = 4242023541084. Its totient is φ = 808004484000.

The previous prime is 2020011209999. The next prime is 2020011210089. The reversal of 2020011210020 is 200121100202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1091887064356 + 928124145664 = 1044934^2 + 963392^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2020011209983 and 2020011210010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50500280231 + ... + 50500280270.

It is an arithmetic number, because the mean of its divisors is an integer number (353501961757).

Almost surely, 22020011210020 is an apocalyptic number.

2020011210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020011210020 is an abundant number, since it is smaller than the sum of its proper divisors (2222012331064).

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

2020011210020 is a wasteful number, since it uses less digits than its factorization.

2020011210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101000560510 (or 101000560508 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2020011210020 its reverse (200121100202), we get a palindrome (2220132310222).

The spelling of 2020011210020 in words is "two trillion, twenty billion, eleven million, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 101000560501 202001121002 404002242004 505002802505 1010005605010 2020011210020