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1968680012 = 221344984319
BaseRepresentation
bin111010101010111…
…1010110001001100
312002012102022021112
41311111322301030
513012440230022
6523203351152
766533334605
oct16525726114
95065368245
101968680012
119202a5482
1246b3824b8
13254b2c620
14149664dac
15b7c778e2
hex7557ac4c

1968680012 has 24 divisors (see below), whose sum is σ = 3718512000. Its totient is φ = 906587136.

The previous prime is 1968679967. The next prime is 1968680027. The reversal of 1968680012 is 2100868691.

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, 18812 + ... + 65507.

It is an arithmetic number, because the mean of its divisors is an integer number (154938000).

Almost surely, 21968680012 is an apocalyptic number.

It is an amenable number.

1968680012 is a deficient number, since it is larger than the sum of its proper divisors (1749831988).

1968680012 is a wasteful number, since it uses less digits than its factorization.

1968680012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84785 (or 84783 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 1968680012 is about 44369.8096908247. The cubic root of 1968680012 is about 1253.3096318955.

The spelling of 1968680012 in words is "one billion, nine hundred sixty-eight million, six hundred eighty thousand, twelve".

Divisors: 1 2 4 13 26 52 449 898 1796 5837 11674 23348 84319 168638 337276 1096147 2192294 4384588 37859231 75718462 151436924 492170003 984340006 1968680012