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2852681 = 13219437
BaseRepresentation
bin1010111000011101001001
312100221010212
422320131021
51212241211
6141050505
733150566
oct12703511
95327125
102852681
111679297
12b56a35
1378b5a0
1454386d
153b538b
hex2b8749

2852681 has 4 divisors (see below), whose sum is σ = 3072132. Its totient is φ = 2633232.

The previous prime is 2852677. The next prime is 2852699. The reversal of 2852681 is 1862582.

2852681 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.

It can be written as a sum of positive squares in 2 ways, for example, as 292681 + 2560000 = 541^2 + 1600^2 .

It is a cyclic number.

It is not a de Polignac number, because 2852681 - 22 = 2852677 is a prime.

It is a super-2 number, since 2×28526812 = 16275577775522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2852671) 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, 109706 + ... + 109731.

It is an arithmetic number, because the mean of its divisors is an integer number (768033).

22852681 is an apocalyptic number.

It is an amenable number.

2852681 is a deficient number, since it is larger than the sum of its proper divisors (219451).

2852681 is a wasteful number, since it uses less digits than its factorization.

2852681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219450.

The product of its digits is 7680, while the sum is 32.

The square root of 2852681 is about 1688.9881586323. The cubic root of 2852681 is about 141.8244375316.

Subtracting from 2852681 its reverse (1862582), we obtain a palindrome (990099).

The spelling of 2852681 in words is "two million, eight hundred fifty-two thousand, six hundred eighty-one".

Divisors: 1 13 219437 2852681