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64042848 = 2532593769
BaseRepresentation
bin1111010001001…
…1011101100000
311110111201021100
43310103131200
5112343332343
610204354400
71405232562
oct364233540
9143451240
1064042848
1133172381
1219545a00
131036419c
148711332
1559509d3
hex3d13760

64042848 has 72 divisors (see below), whose sum is σ = 185257800. Its totient is φ = 20980224.

The previous prime is 64042843. The next prime is 64042871. The reversal of 64042848 is 84824046.

64042848 is a `hidden beast` number, since 640 + 4 + 2 + 8 + 4 + 8 = 666.

64042848 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 (72).

It is a super-2 number, since 2×640428482 = 8202972759902208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64042843) 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 11 ways as a sum of consecutive naturals, for example, 15108 + ... + 18876.

It is an arithmetic number, because the mean of its divisors is an integer number (2573025).

Almost surely, 264042848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64042848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92628900).

64042848 is an abundant number, since it is smaller than the sum of its proper divisors (121214952).

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

64042848 is a wasteful number, since it uses less digits than its factorization.

64042848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844 (or 3833 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 64042848 is about 8002.6775519197. The cubic root of 64042848 is about 400.0892467527.

The spelling of 64042848 in words is "sixty-four million, forty-two thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 59 72 96 118 144 177 236 288 354 472 531 708 944 1062 1416 1888 2124 2832 3769 4248 5664 7538 8496 11307 15076 16992 22614 30152 33921 45228 60304 67842 90456 120608 135684 180912 222371 271368 361824 444742 542736 667113 889484 1085472 1334226 1778968 2001339 2668452 3557936 4002678 5336904 7115872 8005356 10673808 16010712 21347616 32021424 64042848