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64097825 = 5211233083
BaseRepresentation
bin1111010010000…
…0111000100001
311110121111200112
43310200320201
5112402112300
610205501105
71405552061
oct364407041
9143544615
1064097825
11331aa710
1219571795
131038320c
1487273a1
155961e35
hex3d20e21

64097825 has 12 divisors (see below), whose sum is σ = 86707248. Its totient is φ = 46616400.

The previous prime is 64097807. The next prime is 64097833. The reversal of 64097825 is 52879046.

It is a de Polignac number, because none of the positive numbers 2k-64097825 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116267 + ... + 116816.

It is an arithmetic number, because the mean of its divisors is an integer number (7225604).

Almost surely, 264097825 is an apocalyptic number.

It is an amenable number.

64097825 is a deficient number, since it is larger than the sum of its proper divisors (22609423).

64097825 is a wasteful number, since it uses less digits than its factorization.

64097825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233104 (or 233099 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 64097825 is about 8006.1117279239. Note that the first 3 decimals coincide. The cubic root of 64097825 is about 400.2036983332.

The spelling of 64097825 in words is "sixty-four million, ninety-seven thousand, eight hundred twenty-five".

Divisors: 1 5 11 25 55 275 233083 1165415 2563913 5827075 12819565 64097825