Search a number
-
+
12898028 = 22111322549
BaseRepresentation
bin110001001100…
…111011101100
3220021021202202
4301030323230
511300214103
61140241032
7214426403
oct61147354
926237682
1012898028
11730a530
1243a0178
132897990
1419da63a
1511eb988
hexc4ceec

12898028 has 24 divisors (see below), whose sum is σ = 26518800. Its totient is φ = 5411520.

The previous prime is 12898013. The next prime is 12898031. The reversal of 12898028 is 82089821.

It is a junction number, because it is equal to n+sod(n) for n = 12897982 and 12898000.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10703 + ... + 11846.

It is an arithmetic number, because the mean of its divisors is an integer number (1104950).

Almost surely, 212898028 is an apocalyptic number.

It is an amenable number.

12898028 is an abundant number, since it is smaller than the sum of its proper divisors (13620772).

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

12898028 is a wasteful number, since it uses less digits than its factorization.

12898028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22577 (or 22575 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 12898028 is about 3591.3824636204. The cubic root of 12898028 is about 234.5170586015.

The spelling of 12898028 in words is "twelve million, eight hundred ninety-eight thousand, twenty-eight".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 22549 45098 90196 248039 293137 496078 586274 992156 1172548 3224507 6449014 12898028