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3578125 = 56229
BaseRepresentation
bin1101101001100100001101
320201210021011
431221210031
51404000000
6204405221
742261565
oct15514415
96653234
103578125
112024331
121246811
13983845
14691da5
154aa2ba
hex36990d

3578125 has 14 divisors (see below), whose sum is σ = 4492130. Its totient is φ = 2850000.

The previous prime is 3578119. The next prime is 3578129. The reversal of 3578125 is 5218753.

3578125 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 7 ways, for example, as 3396649 + 181476 = 1843^2 + 426^2 .

It is not a de Polignac number, because 3578125 - 25 = 3578093 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3578129) by changing a digit.

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 13 ways as a sum of consecutive naturals, for example, 15511 + ... + 15739.

Almost surely, 23578125 is an apocalyptic number.

It is an amenable number.

3578125 is a deficient number, since it is larger than the sum of its proper divisors (914005).

3578125 is an frugal number, since it uses more digits than its factorization.

3578125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 234 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 3578125 is about 1891.5932438027. The cubic root of 3578125 is about 152.9508293159.

The spelling of 3578125 in words is "three million, five hundred seventy-eight thousand, one hundred twenty-five".

Divisors: 1 5 25 125 229 625 1145 3125 5725 15625 28625 143125 715625 3578125