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8313985 = 55928183
BaseRepresentation
bin11111101101110010000001
3120122101122101
4133231302001
54112021420
6454110401
7130445011
oct37556201
916571571
108313985
114769469
12294b401
131951324
141165c41
15ae360a
hex7edc81

8313985 has 8 divisors (see below), whose sum is σ = 10146240. Its totient is φ = 6538224.

The previous prime is 8313979. The next prime is 8313989. The reversal of 8313985 is 5893138.

8313985 = 3462 + 3472 + ... + 4042.

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 8313985 - 25 = 8313953 is a prime.

8313985 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8313989) 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, 13797 + ... + 14386.

It is an arithmetic number, because the mean of its divisors is an integer number (1268280).

Almost surely, 28313985 is an apocalyptic number.

It is an amenable number.

8313985 is a deficient number, since it is larger than the sum of its proper divisors (1832255).

8313985 is a wasteful number, since it uses less digits than its factorization.

8313985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28247.

The product of its digits is 25920, while the sum is 37.

The square root of 8313985 is about 2883.3981688279. The cubic root of 8313985 is about 202.5830376310.

The spelling of 8313985 in words is "eight million, three hundred thirteen thousand, nine hundred eighty-five".

Divisors: 1 5 59 295 28183 140915 1662797 8313985