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2012002011 = 3459421009
BaseRepresentation
bin111011111101100…
…1011011011011011
312012012221021220000
41313323023123123
513110033031021
6531352104043
7100600510035
oct16773133333
95165837800
102012002011
119427a4988
12481995023
13260aba246
14151300c55
15bb983b26
hex77ecb6db

2012002011 has 20 divisors (see below), whose sum is σ = 3056532600. Its totient is φ = 1318597056.

The previous prime is 2012002007. The next prime is 2012002019. The reversal of 2012002011 is 1102002102.

It is not a de Polignac number, because 2012002011 - 22 = 2012002007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2012001984 and 2012002002.

It is not an unprimeable number, because it can be changed into a prime (2012002019) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 205726 + ... + 215283.

It is an arithmetic number, because the mean of its divisors is an integer number (152826630).

Almost surely, 22012002011 is an apocalyptic number.

2012002011 is a deficient number, since it is larger than the sum of its proper divisors (1044530589).

2012002011 is an equidigital number, since it uses as much as digits as its factorization.

2012002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421080 (or 421071 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2012002011 is about 44855.3454005205. The cubic root of 2012002011 is about 1262.4362896452.

Adding to 2012002011 its reverse (1102002102), we get a palindrome (3114004113).

Subtracting from 2012002011 its reverse (1102002102), we obtain a palindrome (909999909).

The spelling of 2012002011 in words is "two billion, twelve million, two thousand, eleven".

Divisors: 1 3 9 27 59 81 177 531 1593 4779 421009 1263027 3789081 11367243 24839531 34101729 74518593 223555779 670667337 2012002011