Search a number
-
+
52391572305 = 35151132717431
BaseRepresentation
bin110000110010110001…
…111111001101010001
312000020020222122001220
4300302301333031101
51324244220303210
640022433115253
73533212005522
oct606261771521
9160206878056
1052391572305
1120245749796
12a1a19b8b29
134c2c397677
1427701d8849
151569803c70
hexc32c7f351

52391572305 has 32 divisors (see below), whose sum is σ = 84450091008. Its totient is φ = 27734616000.

The previous prime is 52391572297. The next prime is 52391572357. The reversal of 52391572305 is 50327519325.

It is not a de Polignac number, because 52391572305 - 23 = 52391572297 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2996940 + ... + 3014370.

It is an arithmetic number, because the mean of its divisors is an integer number (2639065344).

Almost surely, 252391572305 is an apocalyptic number.

It is an amenable number.

52391572305 is a deficient number, since it is larger than the sum of its proper divisors (32058518703).

52391572305 is a wasteful number, since it uses less digits than its factorization.

52391572305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18917.

The product of its (nonzero) digits is 283500, while the sum is 42.

The spelling of 52391572305 in words is "fifty-two billion, three hundred ninety-one million, five hundred seventy-two thousand, three hundred five".

Divisors: 1 3 5 15 151 453 755 1327 2265 3981 6635 17431 19905 52293 87155 200377 261465 601131 1001885 2632081 3005655 7896243 13160405 23130937 39481215 69392811 115654685 346964055 3492771487 10478314461 17463857435 52391572305