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12926540 = 2251158757
BaseRepresentation
bin110001010011…
…111001001100
3220022201212202
4301103321030
511302122130
61141021032
7214605464
oct61237114
926281782
1012926540
1173299a0
1243b4778
1328a7953
141a06ba4
151205145
hexc53e4c

12926540 has 24 divisors (see below), whose sum is σ = 29614032. Its totient is φ = 4700480.

The previous prime is 12926539. The next prime is 12926567. The reversal of 12926540 is 4562921.

It is a happy number.

12926540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29159 + ... + 29598.

It is an arithmetic number, because the mean of its divisors is an integer number (1233918).

Almost surely, 212926540 is an apocalyptic number.

12926540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12926540 is an abundant number, since it is smaller than the sum of its proper divisors (16687492).

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

12926540 is a wasteful number, since it uses less digits than its factorization.

12926540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58777 (or 58775 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 12926540 is about 3595.3497743613. The cubic root of 12926540 is about 234.6897369206.

The spelling of 12926540 in words is "twelve million, nine hundred twenty-six thousand, five hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 58757 117514 235028 293785 587570 646327 1175140 1292654 2585308 3231635 6463270 12926540