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53216111 = 138534799
BaseRepresentation
bin1100101100000…
…0001101101111
310201010122210002
43023000031233
5102110403421
65140334515
71214221004
oct313001557
9121118702
1053216111
1128048063
12159a443b
13b043230
1470d38ab
154a12b0b
hex32c036f

53216111 has 8 divisors (see below), whose sum is σ = 57388800. Its totient is φ = 49054752.

The previous prime is 53216063. The next prime is 53216113. The reversal of 53216111 is 11161235.

53216111 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 53216111 - 26 = 53216047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53216113) 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, 8690 + ... + 13488.

It is an arithmetic number, because the mean of its divisors is an integer number (7173600).

Almost surely, 253216111 is an apocalyptic number.

53216111 is a deficient number, since it is larger than the sum of its proper divisors (4172689).

53216111 is a wasteful number, since it uses less digits than its factorization.

53216111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5665.

The product of its digits is 180, while the sum is 20.

The square root of 53216111 is about 7294.9373540833. The cubic root of 53216111 is about 376.1384331632.

Adding to 53216111 its reverse (11161235), we get a palindrome (64377346).

The spelling of 53216111 in words is "fifty-three million, two hundred sixteen thousand, one hundred eleven".

Divisors: 1 13 853 4799 11089 62387 4093547 53216111