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65228448 = 253679463
BaseRepresentation
bin1111100011010…
…0111010100000
311112201221121110
43320310322200
5113144302243
610250023320
71421301255
oct370647240
9145657543
1065228448
113390210a
1219a17b40
131068aa1c
14893d42c
155ad6e33
hex3e34ea0

65228448 has 24 divisors (see below), whose sum is σ = 171224928. Its totient is φ = 21742784.

The previous prime is 65228441. The next prime is 65228467. The reversal of 65228448 is 84482256.

65228448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (65228441) 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 3 ways as a sum of consecutive naturals, for example, 339636 + ... + 339827.

It is an arithmetic number, because the mean of its divisors is an integer number (7134372).

Almost surely, 265228448 is an apocalyptic number.

It is an amenable number.

65228448 is an abundant number, since it is smaller than the sum of its proper divisors (105996480).

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

65228448 is a wasteful number, since it uses less digits than its factorization.

65228448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679476 (or 679468 counting only the distinct ones).

The product of its digits is 122880, while the sum is 39.

The square root of 65228448 is about 8076.4130652165. The cubic root of 65228448 is about 402.5430644611.

The spelling of 65228448 in words is "sixty-five million, two hundred twenty-eight thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 679463 1358926 2038389 2717852 4076778 5435704 8153556 10871408 16307112 21742816 32614224 65228448