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68662865296 = 2410926012
BaseRepresentation
bin111111111100101000…
…000010110110010000
320120020020021221220001
4333330220002312100
52111110143142141
651313203255344
74650346503514
oct777450026620
9216206257801
1068662865296
1127135440a73
121138307a554
13662340a09c
1434751ca144
151bbd037a31
hexffca02d90

68662865296 has 45 divisors (see below), whose sum is σ = 134489772963. Its totient is φ = 33959865600.

The previous prime is 68662865279. The next prime is 68662865339. The reversal of 68662865296 is 69256826686.

The square root of 68662865296 is 262036.

It is a perfect power (a square), and thus also a powerful number.

68662865296 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 20438705296 + 48224160000 = 142964^2 + 219600^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 114247396 + ... + 114247996.

Almost surely, 268662865296 is an apocalyptic number.

68662865296 is the 262036-th square number.

It is an amenable number.

68662865296 is a deficient number, since it is larger than the sum of its proper divisors (65826907667).

68662865296 is an frugal number, since it uses more digits than its factorization.

68662865296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428 (or 712 counting only the distinct ones).

The product of its digits is 89579520, while the sum is 64.

Multiplying 68662865296 by its sum of digits (64), we get a square (4394423378944 = 20962882).

The spelling of 68662865296 in words is "sixty-eight billion, six hundred sixty-two million, eight hundred sixty-five thousand, two hundred ninety-six".

Divisors: 1 2 4 8 16 109 218 436 601 872 1202 1744 2404 4808 9616 11881 23762 47524 65509 95048 131018 190096 262036 361201 524072 722402 1048144 1444804 2889608 5779216 7140481 14280962 28561924 39370909 57123848 78741818 114247696 157483636 314967272 629934544 4291429081 8582858162 17165716324 34331432648 68662865296