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2002211240 = 23550055281
BaseRepresentation
bin111011101010111…
…0101000110101000
312011112111212110212
41313111311012220
513100031224430
6530402200252
7100421341361
oct16725650650
95145455425
102002211240
11938217a37
1247a653088
1325ba6c9a3
1414dcb2b68
15bab9cb95
hex775751a8

2002211240 has 16 divisors (see below), whose sum is σ = 4504975380. Its totient is φ = 800884480.

The previous prime is 2002211221. The next prime is 2002211251. The reversal of 2002211240 is 421122002.

It can be written as a sum of positive squares in 2 ways, for example, as 2002204516 + 6724 = 44746^2 + 82^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25027601 + ... + 25027680.

Almost surely, 22002211240 is an apocalyptic number.

2002211240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002211240 is an abundant number, since it is smaller than the sum of its proper divisors (2502764140).

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

2002211240 is a wasteful number, since it uses less digits than its factorization.

2002211240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50055292 (or 50055288 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2002211240 is about 44746.0751351445. The cubic root of 2002211240 is about 1260.3852101790.

Adding to 2002211240 its reverse (421122002), we get a palindrome (2423333242).

The spelling of 2002211240 in words is "two billion, two million, two hundred eleven thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 50055281 100110562 200221124 250276405 400442248 500552810 1001105620 2002211240