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64828925 = 527370451
BaseRepresentation
bin1111011101001…
…1010111111101
311111222122120022
43313103113331
5113044011200
610233301525
71415015420
oct367232775
9144878508
1064828925
1133659a27
12198648a5
131057ac15
1488779b7
155a58885
hex3dd35fd

64828925 has 12 divisors (see below), whose sum is σ = 91872096. Its totient is φ = 44454000.

The previous prime is 64828903. The next prime is 64828943. The reversal of 64828925 is 52982846.

It is not a de Polignac number, because 64828925 - 214 = 64812541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185051 + ... + 185400.

It is an arithmetic number, because the mean of its divisors is an integer number (7656008).

Almost surely, 264828925 is an apocalyptic number.

It is an amenable number.

64828925 is a deficient number, since it is larger than the sum of its proper divisors (27043171).

64828925 is a wasteful number, since it uses less digits than its factorization.

64828925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370468 (or 370463 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The square root of 64828925 is about 8051.6411370602. The cubic root of 64828925 is about 401.7195245792.

The spelling of 64828925 in words is "sixty-four million, eight hundred twenty-eight thousand, nine hundred twenty-five".

Divisors: 1 5 7 25 35 175 370451 1852255 2593157 9261275 12965785 64828925