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53817085 = 5731193257
BaseRepresentation
bin1100110101001…
…0111011111101
310202021012011101
43031102323331
5102234121320
65201253101
71222303060
oct315227375
9122235141
1053817085
1128418633
1216034191
13b1c393a
14720c8d7
154ad0c0a
hex3352efd

53817085 has 32 divisors (see below), whose sum is σ = 76879872. Its totient is φ = 35389440.

The previous prime is 53817073. The next prime is 53817089. The reversal of 53817085 is 58071835.

It is not a de Polignac number, because 53817085 - 217 = 53686013 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 (53817089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209277 + ... + 209533.

It is an arithmetic number, because the mean of its divisors is an integer number (2402496).

Almost surely, 253817085 is an apocalyptic number.

It is an amenable number.

53817085 is a deficient number, since it is larger than the sum of its proper divisors (23062787).

53817085 is a wasteful number, since it uses less digits than its factorization.

53817085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 53817085 is about 7336.0128816681. The cubic root of 53817085 is about 377.5490572621.

The spelling of 53817085 in words is "fifty-three million, eight hundred seventeen thousand, eighty-five".

Divisors: 1 5 7 31 35 155 193 217 257 965 1085 1285 1351 1799 5983 6755 7967 8995 29915 39835 41881 49601 55769 209405 248005 278845 347207 1537631 1736035 7688155 10763417 53817085