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4869985 = 51951263
BaseRepresentation
bin10010100100111101100001
3100011102100211
4102210331201
52221314420
6252214121
756252131
oct22447541
910142324
104869985
11282698a
12176a341
131016863
1490aac1
15662e5a
hex4a4f61

4869985 has 8 divisors (see below), whose sum is σ = 6151680. Its totient is φ = 3690864.

The previous prime is 4869979. The next prime is 4869989. The reversal of 4869985 is 5899684.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2k-4869985 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4869989) 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 7 ways as a sum of consecutive naturals, for example, 25537 + ... + 25726.

It is an arithmetic number, because the mean of its divisors is an integer number (768960).

Almost surely, 24869985 is an apocalyptic number.

It is an amenable number.

4869985 is a deficient number, since it is larger than the sum of its proper divisors (1281695).

4869985 is a wasteful number, since it uses less digits than its factorization.

4869985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51287.

The product of its digits is 622080, while the sum is 49.

The square root of 4869985 is about 2206.8042504944. The cubic root of 4869985 is about 169.5024088670.

It can be divided in two parts, 48699 and 85, that added together give a palindrome (48784).

The spelling of 4869985 in words is "four million, eight hundred sixty-nine thousand, nine hundred eighty-five".

Divisors: 1 5 19 95 51263 256315 973997 4869985