Search a number
-
+
68785319088 = 24321925140833
BaseRepresentation
bin100000000001111101…
…1001010110010110000
320120112202201020220200
41000003323022302300
52111333020202323
651333300035200
74653364364613
oct1000373126260
9216482636820
1068785319088
1127198579352
12113b8092b00
1366428b2b55
14348758417a
151bc8b75443
hex1003ecacb0

68785319088 has 60 divisors (see below), whose sum is σ = 202635122040. Its totient is φ = 21721678848.

The previous prime is 68785319059. The next prime is 68785319111. The reversal of 68785319088 is 88091358786.

68785319088 is a `hidden beast` number, since 6 + 8 + 7 + 8 + 531 + 90 + 8 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12567681 + ... + 12573152.

It is an arithmetic number, because the mean of its divisors is an integer number (3377252034).

Almost surely, 268785319088 is an apocalyptic number.

It is an amenable number.

68785319088 is an abundant number, since it is smaller than the sum of its proper divisors (133849802952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68785319088 is a wasteful number, since it uses less digits than its factorization.

68785319088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25140866 (or 25140857 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 63.

The spelling of 68785319088 in words is "sixty-eight billion, seven hundred eighty-five million, three hundred nineteen thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 36 38 48 57 72 76 114 144 152 171 228 304 342 456 684 912 1368 2736 25140833 50281666 75422499 100563332 150844998 201126664 226267497 301689996 402253328 452534994 477675827 603379992 905069988 955351654 1206759984 1433027481 1810139976 1910703308 2866054962 3620279952 3821406616 4299082443 5732109924 7642813232 8598164886 11464219848 17196329772 22928439696 34392659544 68785319088