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53838521 = 1143911149
BaseRepresentation
bin1100110101100…
…0001010111001
310202022021120022
43031120022321
5102240313041
65201540225
71222422422
oct315301271
9122267508
1053838521
1128432750
1216044675
13b200619
147216649
154ad724b
hex33582b9

53838521 has 8 divisors (see below), whose sum is σ = 58872000. Its totient is φ = 48828240.

The previous prime is 53838517. The next prime is 53838557. The reversal of 53838521 is 12583835.

53838521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53838521 - 22 = 53838517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53838121) 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, 746 + ... + 10403.

It is an arithmetic number, because the mean of its divisors is an integer number (7359000).

Almost surely, 253838521 is an apocalyptic number.

It is an amenable number.

53838521 is a deficient number, since it is larger than the sum of its proper divisors (5033479).

53838521 is a wasteful number, since it uses less digits than its factorization.

53838521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11599.

The product of its digits is 28800, while the sum is 35.

The square root of 53838521 is about 7337.4737478236. The cubic root of 53838521 is about 377.5991780698.

The spelling of 53838521 in words is "fifty-three million, eight hundred thirty-eight thousand, five hundred twenty-one".

Divisors: 1 11 439 4829 11149 122639 4894411 53838521