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52078215168 = 2153472803
BaseRepresentation
bin110000100000000110…
…101000000000000000
311222102102100102220000
4300200012220000000
51323124010341133
635531400520000
73522355345050
oct604006500000
9158372312800
1052078215168
11200a4881951
12a114a80000
134bac4a0c45
142740749560
15154c057413
hexc201a8000

52078215168 has 320 divisors, whose sum is σ = 177879815520. Its totient is φ = 14874181632.

The previous prime is 52078215151. The next prime is 52078215187. The reversal of 52078215168 is 86151287025.

52078215168 is a `hidden beast` number, since 52 + 0 + 7 + 82 + 1 + 516 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18578055 + ... + 18580857.

Almost surely, 252078215168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52078215168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88939907760).

52078215168 is an abundant number, since it is smaller than the sum of its proper divisors (125801600352).

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

52078215168 is an frugal number, since it uses more digits than its factorization.

52078215168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The spelling of 52078215168 in words is "fifty-two billion, seventy-eight million, two hundred fifteen thousand, one hundred sixty-eight".