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51825306 = 2313664427
BaseRepresentation
bin1100010110110…
…0101010011010
310121111222221210
43011230222122
5101231402211
65050443550
71166336121
oct305545232
9117458853
1051825306
1127288135
12154335b6
13a977180
146c50ab8
15483a9a6
hex316ca9a

51825306 has 16 divisors (see below), whose sum is σ = 111623904. Its totient is φ = 15946224.

The previous prime is 51825289. The next prime is 51825307. The reversal of 51825306 is 60352815.

51825306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51825307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332136 + ... + 332291.

It is an arithmetic number, because the mean of its divisors is an integer number (6976494).

Almost surely, 251825306 is an apocalyptic number.

51825306 is an abundant number, since it is smaller than the sum of its proper divisors (59798598).

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

51825306 is a wasteful number, since it uses less digits than its factorization.

51825306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664445.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 51825306 is about 7198.9795110140. The cubic root of 51825306 is about 372.8326676983.

The spelling of 51825306 in words is "fifty-one million, eight hundred twenty-five thousand, three hundred six".

Divisors: 1 2 3 6 13 26 39 78 664427 1328854 1993281 3986562 8637551 17275102 25912653 51825306