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12838026 = 2317125863
BaseRepresentation
bin110000111110…
…010010001010
3220011020110110
4300332102022
511241304101
61135055150
7214056435
oct60762212
926136413
1012838026
117279443
1243714b6
132876586
1419c281c
1511d8cd6
hexc3e48a

12838026 has 16 divisors (see below), whose sum is σ = 27186624. Its totient is φ = 4027584.

The previous prime is 12838013. The next prime is 12838051. The reversal of 12838026 is 62083821.

It is a junction number, because it is equal to n+sod(n) for n = 12837984 and 12838002.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 62830 + ... + 63033.

It is an arithmetic number, because the mean of its divisors is an integer number (1699164).

Almost surely, 212838026 is an apocalyptic number.

12838026 is an abundant number, since it is smaller than the sum of its proper divisors (14348598).

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

12838026 is a wasteful number, since it uses less digits than its factorization.

12838026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125885.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 12838026 is about 3583.0191180065. The cubic root of 12838026 is about 234.1528331698.

The spelling of 12838026 in words is "twelve million, eight hundred thirty-eight thousand, twenty-six".

Divisors: 1 2 3 6 17 34 51 102 125863 251726 377589 755178 2139671 4279342 6419013 12838026