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56663630 = 258963667
BaseRepresentation
bin1101100000100…
…1111001001110
310221121210212222
43120021321032
5104001214010
65342255342
71255430042
oct330117116
9127553788
1056663630
1129a92251
1216b87552
13b97c49a
147750022
154e94355
hex3609e4e

56663630 has 16 divisors (see below), whose sum is σ = 103142160. Its totient is φ = 22410432.

The previous prime is 56663597. The next prime is 56663639. The reversal of 56663630 is 3636665.

56663630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56663639) 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 7 ways as a sum of consecutive naturals, for example, 30944 + ... + 32723.

It is an arithmetic number, because the mean of its divisors is an integer number (6446385).

Almost surely, 256663630 is an apocalyptic number.

56663630 is a deficient number, since it is larger than the sum of its proper divisors (46478530).

56663630 is a wasteful number, since it uses less digits than its factorization.

56663630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63763.

The product of its (nonzero) digits is 58320, while the sum is 35.

The square root of 56663630 is about 7527.5248255984. The cubic root of 56663630 is about 384.0915896617.

The spelling of 56663630 in words is "fifty-six million, six hundred sixty-three thousand, six hundred thirty".

Divisors: 1 2 5 10 89 178 445 890 63667 127334 318335 636670 5666363 11332726 28331815 56663630