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2852881 = 8773253
BaseRepresentation
bin1010111000100000010001
312100221102021
422320200101
51212243011
6141051441
733151303
oct12704021
95327367
102852881
111679459
12b56b81
1378b6c5
14543973
153b5471
hex2b8811

2852881 has 4 divisors (see below), whose sum is σ = 2857012. Its totient is φ = 2848752.

The previous prime is 2852879. The next prime is 2852887. The reversal of 2852881 is 1882582.

It is a happy number.

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 2692881 + 160000 = 1641^2 + 400^2 .

It is a cyclic number.

It is not a de Polignac number, because 2852881 - 21 = 2852879 is a prime.

It is a super-2 number, since 2×28528812 = 16277860000322, which contains 22 as substring.

It is a Duffinian number.

2852881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2852887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750 + ... + 2503.

It is an arithmetic number, because the mean of its divisors is an integer number (714253).

22852881 is an apocalyptic number.

It is an amenable number.

2852881 is a deficient number, since it is larger than the sum of its proper divisors (4131).

2852881 is an equidigital number, since it uses as much as digits as its factorization.

2852881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130.

The product of its digits is 10240, while the sum is 34.

The square root of 2852881 is about 1689.0473646408. The cubic root of 2852881 is about 141.8277518670.

Subtracting from 2852881 its reverse (1882582), we obtain a cube (970299 = 993).

The spelling of 2852881 in words is "two million, eight hundred fifty-two thousand, eight hundred eighty-one".

Divisors: 1 877 3253 2852881