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2000010000020 = 2251711352056481
BaseRepresentation
bin11101000110101001111…
…000101011011010010100
321002012101010122220102012
4131012221320223122110
5230232010030000040
64130443015203352
7264332053334444
oct35065170533224
97065333586365
102000010000020
11701221560a6a
12283747376558
131167a5655c46
146cb2dd34124
1537058d05865
hex1d1a9e2b694

2000010000020 has 48 divisors (see below), whose sum is σ = 4486435844688. Its totient is φ = 746281697280.

The previous prime is 2000010000019. The next prime is 2000010000031. The reversal of 2000010000020 is 200000100002.

It can be written as a sum of positive squares in 8 ways, for example, as 39567575056 + 1960442424964 = 198916^2 + 1400158^2 .

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a junction number, because it is equal to n+sod(n) for n = 2000009999959 and 2000010000013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25989821 + ... + 26066660.

It is an arithmetic number, because the mean of its divisors is an integer number (93467413431).

Almost surely, 22000010000020 is an apocalyptic number.

2000010000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000010000020 is an abundant number, since it is smaller than the sum of its proper divisors (2486425844668).

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

2000010000020 is a wasteful number, since it uses less digits than its factorization.

2000010000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52056620 (or 52056618 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

Adding to 2000010000020 its reverse (200000100002), we get a palindrome (2200010100022).

The spelling of 2000010000020 in words is "two trillion, ten million, twenty", and thus it is an aban number and an uban number.

Divisors: 1 2 4 5 10 17 20 34 68 85 113 170 226 340 452 565 1130 1921 2260 3842 7684 9605 19210 38420 52056481 104112962 208225924 260282405 520564810 884960177 1041129620 1769920354 3539840708 4424800885 5882382353 8849601770 11764764706 17699203540 23529529412 29411911765 58823823530 100000500001 117647647060 200001000002 400002000004 500002500005 1000005000010 2000010000020