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2121330230 = 25635333391
BaseRepresentation
bin111111001110000…
…1110111000110110
312110211122202000022
41332130032320312
513321030031410
6550255245142
7103366003145
oct17634167066
95424582008
102121330230
11999487888
124b25197b2
1327a6488b6
14161a3d75c
15c637c455
hex7e70ee36

2121330230 has 16 divisors (see below), whose sum is σ = 3819109824. Its totient is φ = 848373120.

The previous prime is 2121330229. The next prime is 2121330293. The reversal of 2121330230 is 320331212.

It is a junction number, because it is equal to n+sod(n) for n = 2121330199 and 2121330208.

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, 46835 + ... + 80225.

It is an arithmetic number, because the mean of its divisors is an integer number (238694364).

Almost surely, 22121330230 is an apocalyptic number.

2121330230 is a deficient number, since it is larger than the sum of its proper divisors (1697779594).

2121330230 is a wasteful number, since it uses less digits than its factorization.

2121330230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39751.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2121330230 is about 46057.9008423093. The cubic root of 2121330230 is about 1284.9002895172.

Adding to 2121330230 its reverse (320331212), we get a palindrome (2441661442).

The spelling of 2121330230 in words is "two billion, one hundred twenty-one million, three hundred thirty thousand, two hundred thirty".

Divisors: 1 2 5 10 6353 12706 31765 33391 63530 66782 166955 333910 212133023 424266046 1060665115 2121330230