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868791214 = 213115721121
BaseRepresentation
bin110011110010001…
…011001110101110
32020112210011111101
4303302023032232
53234402304324
6222113113314
730346413664
oct6362131656
92215704441
10868791214
11406456775
12202b5883a
1310acba455
1483554c34
1551414944
hex33c8b3ae

868791214 has 16 divisors (see below), whose sum is σ = 1321561296. Its totient is φ = 428313600.

The previous prime is 868791199. The next prime is 868791223. The reversal of 868791214 is 412197868.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 30574 + ... + 51694.

It is an arithmetic number, because the mean of its divisors is an integer number (82597581).

Almost surely, 2868791214 is an apocalyptic number.

868791214 is a deficient number, since it is larger than the sum of its proper divisors (452770082).

868791214 is a wasteful number, since it uses less digits than its factorization.

868791214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21411.

The product of its digits is 193536, while the sum is 46.

The square root of 868791214 is about 29475.2644432582. The cubic root of 868791214 is about 954.1979373550.

The spelling of 868791214 in words is "eight hundred sixty-eight million, seven hundred ninety-one thousand, two hundred fourteen".

Divisors: 1 2 131 157 262 314 20567 21121 41134 42242 2766851 3315997 5533702 6631994 434395607 868791214