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53032785 = 3513312283
BaseRepresentation
bin1100101001001…
…1011101010001
310200210100022020
43022103131101
5102034022120
65132402053
71212525351
oct312233521
9120710266
1053032785
1127a32353
1215916329
13acaa960
147086b61
1549c8640
hex3293751

53032785 has 48 divisors (see below), whose sum is σ = 94756032. Its totient is φ = 25176960.

The previous prime is 53032783. The next prime is 53032789. The reversal of 53032785 is 58723035.

53032785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53032785 - 21 = 53032783 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (53032783) 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 47 ways as a sum of consecutive naturals, for example, 187254 + ... + 187536.

It is an arithmetic number, because the mean of its divisors is an integer number (1974084).

Almost surely, 253032785 is an apocalyptic number.

It is an amenable number.

53032785 is a deficient number, since it is larger than the sum of its proper divisors (41723247).

53032785 is a wasteful number, since it uses less digits than its factorization.

53032785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 53032785 is about 7282.3612242184. The cubic root of 53032785 is about 375.7060121795.

The spelling of 53032785 in words is "fifty-three million, thirty-two thousand, seven hundred eighty-five".

Divisors: 1 3 5 13 15 31 39 65 93 155 195 283 403 465 849 961 1209 1415 2015 2883 3679 4245 4805 6045 8773 11037 12493 14415 18395 26319 37479 43865 55185 62465 114049 131595 187395 271963 342147 570245 815889 1359815 1710735 3535519 4079445 10606557 17677595 53032785