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2010020011 = 7128310141
BaseRepresentation
bin111011111001110…
…0111100010101011
312012002012121002121
41313303213202223
513104031120021
6531241412111
7100544613436
oct16763474253
95162177077
102010020011
1194167086a
1248119a037
1326057506c
14150d4681d
15bb6e1741
hex77ce78ab

2010020011 has 4 divisors (see below), whose sum is σ = 2038330224. Its totient is φ = 1981709800.

The previous prime is 2010020009. The next prime is 2010020021. The reversal of 2010020011 is 1100200102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2010020011 - 21 = 2010020009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2010019976 and 2010020003.

It is not an unprimeable number, because it can be changed into a prime (2010020021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14155000 + ... + 14155141.

It is an arithmetic number, because the mean of its divisors is an integer number (509582556).

Almost surely, 22010020011 is an apocalyptic number.

2010020011 is a deficient number, since it is larger than the sum of its proper divisors (28310213).

2010020011 is an equidigital number, since it uses as much as digits as its factorization.

2010020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28310212.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 2010020011 is about 44833.2467149101. The cubic root of 2010020011 is about 1262.0216163041.

Adding to 2010020011 its reverse (1100200102), we get a palindrome (3110220113).

The spelling of 2010020011 in words is "two billion, ten million, twenty thousand, eleven".

Divisors: 1 71 28310141 2010020011