Search a number
-
+
2985 = 35199
BaseRepresentation
bin101110101001
311002120
4232221
543420
621453
711463
oct5651
94076
102985
112274
121889
131488
141133
15d40
hexba9

2985 has 8 divisors (see below), whose sum is σ = 4800. Its totient is φ = 1584.

The previous prime is 2971. The next prime is 2999. The reversal of 2985 is 5892.

It can be divided in two parts, 298 and 5, that added together give a palindrome (303).

2985 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (2971) and next prime (2999).

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

It is not a de Polignac number, because 2985 - 24 = 2969 is a prime.

It is an Ulam number.

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

It is a plaindrome in base 12, base 13 and base 14.

It is a nialpdrome in base 15 and base 16.

It is a zygodrome in base 14.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85 + ... + 114.

It is an arithmetic number, because the mean of its divisors is an integer number (600).

22985 is an apocalyptic number.

It is an amenable number.

2985 is a deficient number, since it is larger than the sum of its proper divisors (1815).

2985 is a wasteful number, since it uses less digits than its factorization.

2985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207.

The product of its digits is 720, while the sum is 24.

The square root of 2985 is about 54.6351535186. The cubic root of 2985 is about 14.3984180361.

The spelling of 2985 in words is "two thousand, nine hundred eighty-five".

Divisors: 1 3 5 15 199 597 995 2985