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2001122230 = 25316455233
BaseRepresentation
bin111011101000110…
…1011001110110110
312011110110112122011
41313101223032312
513044241402410
6530322554434
7100406154412
oct16721531666
95143415564
102001122230
11937643828
1247a208a1a
1325b77b0c3
1414daabd42
15baa3518a
hex7746b3b6

2001122230 has 16 divisors (see below), whose sum is σ = 3718214784. Its totient is φ = 774627840.

The previous prime is 2001122143. The next prime is 2001122251. The reversal of 2001122230 is 322211002.

It is a self number, because there is not a number n which added to its sum of digits gives 2001122230.

It is a congruent number.

It is an unprimeable number.

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, 3227307 + ... + 3227926.

It is an arithmetic number, because the mean of its divisors is an integer number (232388424).

Almost surely, 22001122230 is an apocalyptic number.

2001122230 is a deficient number, since it is larger than the sum of its proper divisors (1717092554).

2001122230 is a wasteful number, since it uses less digits than its factorization.

2001122230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6455271.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2001122230 is about 44733.9047032561. The cubic root of 2001122230 is about 1260.1566593657.

Adding to 2001122230 its reverse (322211002), we get a palindrome (2323333232).

The spelling of 2001122230 in words is "two billion, one million, one hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 31 62 155 310 6455233 12910466 32276165 64552330 200112223 400224446 1000561115 2001122230