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2010220021 = 107131143413
BaseRepresentation
bin111011111010001…
…1000010111110101
312012002120202110101
41313310120113311
513104104020041
6531245554101
7100546405525
oct16764302765
95162522411
102010220021
11941798067
12481275931
13260615104
14150d99685
15bb730b31
hex77d185f5

2010220021 has 8 divisors (see below), whose sum is σ = 2044509984. Its totient is φ = 1976217360.

The previous prime is 2010220001. The next prime is 2010220061. The reversal of 2010220021 is 1200220102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2010220021 - 25 = 2010219989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010220001) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 57690 + ... + 85723.

It is an arithmetic number, because the mean of its divisors is an integer number (255563748).

Almost surely, 22010220021 is an apocalyptic number.

It is an amenable number.

2010220021 is a deficient number, since it is larger than the sum of its proper divisors (34289963).

2010220021 is a wasteful number, since it uses less digits than its factorization.

2010220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143651.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2010220021 is about 44835.4772585282. The cubic root of 2010220021 is about 1262.0634746886.

Adding to 2010220021 its reverse (1200220102), we get a palindrome (3210440123).

The spelling of 2010220021 in words is "two billion, ten million, two hundred twenty thousand, twenty-one".

Divisors: 1 107 131 14017 143413 15345191 18787103 2010220021