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65480785 = 533738861
BaseRepresentation
bin1111100111001…
…0100001010001
311120012202202021
43321302201101
5113230341120
610255251441
71423402036
oct371624121
9146182667
1065480785
1133a64757
1219b19b81
1310748836
1489a738d
155b36aaa
hex3e72851

65480785 has 8 divisors (see below), whose sum is σ = 78812136. Its totient is φ = 52227840.

The previous prime is 65480777. The next prime is 65480791. The reversal of 65480785 is 58708456.

65480785 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 10705984 + 54774801 = 3272^2 + 7401^2 .

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

It is not a de Polignac number, because 65480785 - 23 = 65480777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 17746 + ... + 21115.

It is an arithmetic number, because the mean of its divisors is an integer number (9851517).

Almost surely, 265480785 is an apocalyptic number.

It is an amenable number.

65480785 is a deficient number, since it is larger than the sum of its proper divisors (13331351).

65480785 is a wasteful number, since it uses less digits than its factorization.

65480785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39203.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 65480785 is about 8092.0198343800. The cubic root of 65480785 is about 403.0614773615.

The spelling of 65480785 in words is "sixty-five million, four hundred eighty thousand, seven hundred eighty-five".

Divisors: 1 5 337 1685 38861 194305 13096157 65480785