Search a number
-
+
2010221010020 = 225100511050501
BaseRepresentation
bin11101010000001010100…
…000100101110001100100
321010011201202110221211202
4131100022200211301210
5230413413034310040
64135252140422032
7265143102441056
oct35201240456144
97104652427752
102010221010020
11705591398a03
12285716b47918
13117741c83bb2
146d41c1038d6
1537455495015
hex1d40a825c64

2010221010020 has 12 divisors (see below), whose sum is σ = 4221464121084. Its totient is φ = 804088404000.

The previous prime is 2010221010011. The next prime is 2010221010043. The reversal of 2010221010020 is 200101220102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1293719706724 + 716501303296 = 1137418^2 + 846464^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2010221009983 and 2010221010010.

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, 50255525231 + ... + 50255525270.

It is an arithmetic number, because the mean of its divisors is an integer number (351788676757).

Almost surely, 22010221010020 is an apocalyptic number.

2010221010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2010221010020 is an abundant number, since it is smaller than the sum of its proper divisors (2211243111064).

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

2010221010020 is a wasteful number, since it uses less digits than its factorization.

2010221010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100511050510 (or 100511050508 counting only the distinct ones).

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

Adding to 2010221010020 its reverse (200101220102), we get a palindrome (2210322230122).

The spelling of 2010221010020 in words is "two trillion, ten billion, two hundred twenty-one million, ten thousand, twenty".

Divisors: 1 2 4 5 10 20 100511050501 201022101002 402044202004 502555252505 1005110505010 2010221010020