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2984985 = 33522111
BaseRepresentation
bin1011011000110000011001
312121122122000
423120300121
51231004420
6143551213
734241403
oct13306031
95548560
102984985
111759733
12bbb509
13806883
14579b73
153de690
hex2d8c19

2984985 has 16 divisors (see below), whose sum is σ = 5306880. Its totient is φ = 1591920.

The previous prime is 2984977. The next prime is 2985001. The reversal of 2984985 is 5894892.

It is not a de Polignac number, because 2984985 - 23 = 2984977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2984985.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10921 + ... + 11190.

It is an arithmetic number, because the mean of its divisors is an integer number (331680).

22984985 is an apocalyptic number.

It is an amenable number.

2984985 is a deficient number, since it is larger than the sum of its proper divisors (2321895).

2984985 is a wasteful number, since it uses less digits than its factorization.

2984985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22125 (or 22119 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 2984985 is about 1727.7109133185. The cubic root of 2984985 is about 143.9839391810.

It can be divided in two parts, 2984 and 985, that added together give a square (3969 = 632).

The spelling of 2984985 in words is "two million, nine hundred eighty-four thousand, nine hundred eighty-five".

Divisors: 1 3 5 9 15 27 45 135 22111 66333 110555 198999 331665 596997 994995 2984985