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2685253 = 13611973
BaseRepresentation
bin1010001111100101000101
312001102110211
422033211011
51141412003
6133315421
731552504
oct12174505
95042424
102685253
11157451a
12a95b71
1373030c
144dc83b
1538096d
hex28f945

2685253 has 4 divisors (see below), whose sum is σ = 2688588. Its totient is φ = 2681920.

The previous prime is 2685247. The next prime is 2685257. The reversal of 2685253 is 3525862.

It is a happy number.

2685253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3525862 = 21762931.

It can be written as a sum of positive squares in 2 ways, for example, as 515524 + 2169729 = 718^2 + 1473^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2685253 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 217 + 66 + 84 + 56 + 221 + 58 + 33 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685257) 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 3 ways as a sum of consecutive naturals, for example, 375 + ... + 2347.

It is an arithmetic number, because the mean of its divisors is an integer number (672147).

22685253 is an apocalyptic number.

It is an amenable number.

2685253 is a deficient number, since it is larger than the sum of its proper divisors (3335).

2685253 is a wasteful number, since it uses less digits than its factorization.

2685253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334.

The product of its digits is 14400, while the sum is 31.

The square root of 2685253 is about 1638.6741591909. The cubic root of 2685253 is about 138.9936853402.

The spelling of 2685253 in words is "two million, six hundred eighty-five thousand, two hundred fifty-three".

Divisors: 1 1361 1973 2685253