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66385048 = 2337322247
BaseRepresentation
bin1111110100111…
…1010010011000
311121220201011111
43331033102120
5113443310143
610330510104
71434156262
oct375172230
9147821144
1066385048
1134522084
121a295334
13109a42c2
148b60b32
155c6499d
hex3f4f498

66385048 has 16 divisors (see below), whose sum is σ = 124811280. Its totient is φ = 33102048.

The previous prime is 66385037. The next prime is 66385049. The reversal of 66385048 is 84058366.

It is a self number, because there is not a number n which added to its sum of digits gives 66385048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66385049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8140 + ... + 14107.

It is an arithmetic number, because the mean of its divisors is an integer number (7800705).

Almost surely, 266385048 is an apocalyptic number.

It is an amenable number.

66385048 is a deficient number, since it is larger than the sum of its proper divisors (58426232).

66385048 is a wasteful number, since it uses less digits than its factorization.

66385048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22626 (or 22622 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 66385048 is about 8147.7020073147. The cubic root of 66385048 is about 404.9083733177.

The spelling of 66385048 in words is "sixty-six million, three hundred eighty-five thousand, forty-eight".

Divisors: 1 2 4 8 373 746 1492 2984 22247 44494 88988 177976 8298131 16596262 33192524 66385048