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12681350 = 2521123057
BaseRepresentation
bin110000011000…
…000010000110
3212212021112122
4300120002012
511221300400
61131445542
7212534603
oct60300206
925767478
1012681350
117181760
1242b68b2
132820176
1419816aa
1511a7685
hexc18086

12681350 has 24 divisors (see below), whose sum is σ = 25732728. Its totient is φ = 4611200.

The previous prime is 12681329. The next prime is 12681353. The reversal of 12681350 is 5318621.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12681353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10979 + ... + 12078.

It is an arithmetic number, because the mean of its divisors is an integer number (1072197).

Almost surely, 212681350 is an apocalyptic number.

12681350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12681350 is an abundant number, since it is smaller than the sum of its proper divisors (13051378).

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

12681350 is a wasteful number, since it uses less digits than its factorization.

12681350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23080 (or 23075 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 12681350 is about 3561.0883167931. The cubic root of 12681350 is about 233.1963935708.

Adding to 12681350 its reverse (5318621), we get a palindrome (17999971).

It can be divided in two parts, 12681 and 350, that added together give a palindrome (13031).

The spelling of 12681350 in words is "twelve million, six hundred eighty-one thousand, three hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 23057 46114 115285 230570 253627 507254 576425 1152850 1268135 2536270 6340675 12681350