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2257893 = 321122807
BaseRepresentation
bin1000100111001111100101
311020201020200
420213033211
51034223033
6120221113
725122531
oct10471745
94221220
102257893
111302430
1290a799
13610941
1442abc1
152e9013
hex2273e5

2257893 has 12 divisors (see below), whose sum is σ = 3558048. Its totient is φ = 1368360.

The previous prime is 2257883. The next prime is 2257909. The reversal of 2257893 is 3987522.

It is a happy number.

It is not a de Polignac number, because 2257893 - 24 = 2257877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11305 + ... + 11502.

It is an arithmetic number, because the mean of its divisors is an integer number (296504).

22257893 is an apocalyptic number.

It is an amenable number.

2257893 is a deficient number, since it is larger than the sum of its proper divisors (1300155).

2257893 is a wasteful number, since it uses less digits than its factorization.

2257893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22824 (or 22821 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 2257893 is about 1502.6286966513. The cubic root of 2257893 is about 131.1901169000.

It can be divided in two parts, 225 and 7893, that added together give a palindrome (8118).

The spelling of 2257893 in words is "two million, two hundred fifty-seven thousand, eight hundred ninety-three".

Divisors: 1 3 9 11 33 99 22807 68421 205263 250877 752631 2257893