Search a number
-
+
2485 = 5771
BaseRepresentation
bin100110110101
310102001
4212311
534420
615301
710150
oct4665
93361
102485
11195a
121531
131192
14c97
15b0a
hex9b5

2485 has 8 divisors (see below), whose sum is σ = 3456. Its totient is φ = 1680.

The previous prime is 2477. The next prime is 2503. The reversal of 2485 is 5842.

It can be divided in two parts, 248 and 5, that added together give a triangular number (253 = T22).

2485 = T29 + T30 + ... + T33.

2485 = 112 + 122 + ... + 202.

It is a happy number.

2485 is a nontrivial binomial coefficient, being equal to C(71, 2).

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

It is not a de Polignac number, because 2485 - 23 = 2477 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

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, 1 + ... + 70.

It is an arithmetic number, because the mean of its divisors is an integer number (432).

2485 is the 70-th triangular number.

2485 is the 24-th centered nonagonal number.

It is an amenable number.

2485 is a deficient number, since it is larger than the sum of its proper divisors (971).

2485 is an equidigital number, since it uses as much as digits as its factorization.

2485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83.

The product of its digits is 320, while the sum is 19.

The square root of 2485 is about 49.8497743225. The cubic root of 2485 is about 13.5448894368.

The spelling of 2485 in words is "two thousand, four hundred eighty-five".

Divisors: 1 5 7 35 71 355 497 2485