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12794140 = 2256110487
BaseRepresentation
bin110000110011…
…100100011100
3220002000021001
4300303210130
511233403030
61134120044
7213514462
oct60634434
926060231
1012794140
117249477
124350024
13285c5c8
1419b0832
1511cacca
hexc3391c

12794140 has 24 divisors (see below), whose sum is σ = 27310752. Its totient is φ = 5033280.

The previous prime is 12794137. The next prime is 12794167. The reversal of 12794140 is 4149721.

It is a junction number, because it is equal to n+sod(n) for n = 12794099 and 12794108.

It is a congruent number.

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, 4024 + ... + 6463.

It is an arithmetic number, because the mean of its divisors is an integer number (1137948).

Almost surely, 212794140 is an apocalyptic number.

12794140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12794140 is an abundant number, since it is smaller than the sum of its proper divisors (14516612).

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

12794140 is a wasteful number, since it uses less digits than its factorization.

12794140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10557 (or 10555 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12794140 is about 3576.8897103489. The cubic root of 12794140 is about 233.8857162249.

The spelling of 12794140 in words is "twelve million, seven hundred ninety-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 10487 20974 41948 52435 104870 209740 639707 1279414 2558828 3198535 6397070 12794140