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2002331111 = 1131788493
BaseRepresentation
bin111011101011001…
…0010010111100111
312011112201221220112
41313112102113213
513100044043421
6530404523235
7100422351014
oct16726222747
95145657815
102002331111
1193829a000
1247a6b051b
1325bab2411
1414dd0470b
15babc345b
hex775925e7

2002331111 has 16 divisors (see below), whose sum is σ = 2331993888. Its totient is φ = 1713205120.

The previous prime is 2002331101. The next prime is 2002331147. The reversal of 2002331111 is 1111332002.

It is not a de Polignac number, because 2002331111 - 26 = 2002331047 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 (2002331101) 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 15 ways as a sum of consecutive naturals, for example, 21620 + ... + 66873.

It is an arithmetic number, because the mean of its divisors is an integer number (145749618).

Almost surely, 22002331111 is an apocalyptic number.

2002331111 is a deficient number, since it is larger than the sum of its proper divisors (329662777).

2002331111 is an equidigital number, since it uses as much as digits as its factorization.

2002331111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88543 (or 88521 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2002331111 is about 44747.4145733583. The cubic root of 2002331111 is about 1260.4103624735.

Adding to 2002331111 its reverse (1111332002), we get a palindrome (3113663113).

The spelling of 2002331111 in words is "two billion, two million, three hundred thirty-one thousand, one hundred eleven".

Divisors: 1 11 17 121 187 1331 2057 22627 88493 973423 1504381 10707653 16548191 117784183 182030101 2002331111