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211223303230 = 251710911398991
BaseRepresentation
bin1100010010110111100…
…0111101010000111110
3202012012111220120011211
43010231320331100332
511430041131200410
6241011252235034
721155211311452
oct3045570752076
9665174816154
10211223303230
1181641059015
1234b2a30ba7a
1316bc259c8c4
14a31a8bc662
15576392268a
hex312de3d43e

211223303230 has 32 divisors (see below), whose sum is σ = 406260074880. Its totient is φ = 78789818880.

The previous prime is 211223303227. The next prime is 211223303237. The reversal of 211223303230 is 32303322112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211223303237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5680966 + ... + 5718025.

It is an arithmetic number, because the mean of its divisors is an integer number (12695627340).

Almost surely, 2211223303230 is an apocalyptic number.

211223303230 is a deficient number, since it is larger than the sum of its proper divisors (195036771650).

211223303230 is a wasteful number, since it uses less digits than its factorization.

211223303230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11399124.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 211223303230 its reverse (32303322112), we get a palindrome (243526625342).

The spelling of 211223303230 in words is "two hundred eleven billion, two hundred twenty-three million, three hundred three thousand, two hundred thirty".

Divisors: 1 2 5 10 17 34 85 109 170 218 545 1090 1853 3706 9265 18530 11398991 22797982 56994955 113989910 193782847 387565694 968914235 1242490019 1937828470 2484980038 6212450095 12424900190 21122330323 42244660646 105611651615 211223303230