Search a number
-
+
12746838 = 2313179613
BaseRepresentation
bin110000101000…
…000001010110
3212222121101010
4300220001112
511230344323
61133113050
7213226536
oct60500126
925877333
1012746838
117216985
124328786
132843c10
14199b4c6
1511bbc93
hexc28056

12746838 has 32 divisors (see below), whose sum is σ = 29072736. Its totient is φ = 3691008.

The previous prime is 12746837. The next prime is 12746849. The reversal of 12746838 is 83864721.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 12746796 and 12746805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12746837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3481 + ... + 6132.

It is an arithmetic number, because the mean of its divisors is an integer number (908523).

Almost surely, 212746838 is an apocalyptic number.

12746838 is an abundant number, since it is smaller than the sum of its proper divisors (16325898).

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

12746838 is a wasteful number, since it uses less digits than its factorization.

12746838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9648.

The product of its digits is 64512, while the sum is 39.

The square root of 12746838 is about 3570.2714182538. The cubic root of 12746838 is about 233.5971225290.

The spelling of 12746838 in words is "twelve million, seven hundred forty-six thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 13 17 26 34 39 51 78 102 221 442 663 1326 9613 19226 28839 57678 124969 163421 249938 326842 374907 490263 749814 980526 2124473 4248946 6373419 12746838