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806768957292 = 2231921149167311
BaseRepresentation
bin10111011110101110010…
…11010101011101101100
32212010102010010101202120
423233113023111131230
5101204230323113132
61414342522352540
7112200325663254
oct13572713253554
92763363111676
10806768957292
11291170053581
1211043535b750
135b10244984c
142b09533c964
1515ebc6be02c
hexbbd72d576c

806768957292 has 48 divisors (see below), whose sum is σ = 1981643328000. Its totient is φ = 254755575360.

The previous prime is 806768957243. The next prime is 806768957297. The reversal of 806768957292 is 292759867608.

It is not an unprimeable number, because it can be changed into a prime (806768957297) 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, 4738317 + ... + 4905627.

It is an arithmetic number, because the mean of its divisors is an integer number (41284236000).

Almost surely, 2806768957292 is an apocalyptic number.

It is an amenable number.

806768957292 is an abundant number, since it is smaller than the sum of its proper divisors (1174874370708).

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

806768957292 is a wasteful number, since it uses less digits than its factorization.

806768957292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188486 (or 188484 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 69.

The spelling of 806768957292 in words is "eight hundred six billion, seven hundred sixty-eight million, nine hundred fifty-seven thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 21149 42298 63447 84596 126894 167311 253788 334622 401831 501933 669244 803662 1003866 1205493 1607324 2007732 2410986 3178909 4821972 6357818 9536727 12715636 19073454 38146908 3538460339 7076920678 10615381017 14153841356 21230762034 42461524068 67230746441 134461492882 201692239323 268922985764 403384478646 806768957292