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52780307 = 4310911261
BaseRepresentation
bin1100100101010…
…1110100010011
310200022111222012
43021111310103
5102002432212
65123133135
71210424306
oct311256423
9120274865
1052780307
112787a698
12158141ab
13ac1ca68
14701cb3d
154978922
hex3255d13

52780307 has 8 divisors (see below), whose sum is σ = 54508080. Its totient is φ = 51075360.

The previous prime is 52780303. The next prime is 52780313. The reversal of 52780307 is 70308725.

52780307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52780307 - 22 = 52780303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52780303) 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, 944 + ... + 10317.

It is an arithmetic number, because the mean of its divisors is an integer number (6813510).

Almost surely, 252780307 is an apocalyptic number.

52780307 is a deficient number, since it is larger than the sum of its proper divisors (1727773).

52780307 is a wasteful number, since it uses less digits than its factorization.

52780307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11413.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 52780307 is about 7265.0056434940. The cubic root of 52780307 is about 375.1088442566.

The spelling of 52780307 in words is "fifty-two million, seven hundred eighty thousand, three hundred seven".

Divisors: 1 43 109 4687 11261 484223 1227449 52780307