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5018985 = 325111533
BaseRepresentation
bin10011001001010101101001
3100102222202100
4103021111221
52241101420
6255324013
760442416
oct23112551
910388670
105018985
112918924
121820609
13106961a
1494910d
15692190
hex4c9569

5018985 has 12 divisors (see below), whose sum is σ = 8699652. Its totient is φ = 2676768.

The previous prime is 5018971. The next prime is 5018987. The reversal of 5018985 is 5898105.

It can be written as a sum of positive squares in 2 ways, for example, as 746496 + 4272489 = 864^2 + 2067^2 .

It is not a de Polignac number, because 5018985 - 217 = 4887913 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5018987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55722 + ... + 55811.

It is an arithmetic number, because the mean of its divisors is an integer number (724971).

Almost surely, 25018985 is an apocalyptic number.

It is an amenable number.

5018985 is a deficient number, since it is larger than the sum of its proper divisors (3680667).

5018985 is a wasteful number, since it uses less digits than its factorization.

5018985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111544 (or 111541 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 5018985 is about 2240.3091304550. The cubic root of 5018985 is about 171.2137472766.

The spelling of 5018985 in words is "five million, eighteen thousand, nine hundred eighty-five".

Divisors: 1 3 5 9 15 45 111533 334599 557665 1003797 1672995 5018985