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28241412 = 22359113353
BaseRepresentation
bin110101110111…
…0111000000100
31222010210221020
41223232320010
524212211122
62445151140
7462022323
oct153567004
958123836
1028241412
1114a3a211
12955b4b0
135b0a6c4
143a720ba
15272cc5c
hex1aeee04

28241412 has 48 divisors (see below), whose sum is σ = 67798080. Its totient is φ = 9146368.

The previous prime is 28241393. The next prime is 28241413. The reversal of 28241412 is 21414282.

It is not an unprimeable number, because it can be changed into a prime (28241413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79828 + ... + 80180.

It is an arithmetic number, because the mean of its divisors is an integer number (1412460).

Almost surely, 228241412 is an apocalyptic number.

It is an amenable number.

28241412 is an abundant number, since it is smaller than the sum of its proper divisors (39556668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28241412 is a wasteful number, since it uses less digits than its factorization.

28241412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 530 counting only the distinct ones).

The product of its digits is 1024, while the sum is 24.

The square root of 28241412 is about 5314.2649538765. The cubic root of 28241412 is about 304.5291022414.

Adding to 28241412 its reverse (21414282), we get a palindrome (49655694).

The spelling of 28241412 in words is "twenty-eight million, two hundred forty-one thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 59 113 118 177 226 236 339 353 354 452 678 706 708 1059 1356 1412 2118 4236 6667 13334 20001 20827 26668 39889 40002 41654 62481 79778 80004 83308 119667 124962 159556 239334 249924 478668 2353451 4706902 7060353 9413804 14120706 28241412