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12793019 = 72717597
BaseRepresentation
bin110000110011…
…010010111011
3220001221201112
4300303102323
511233334034
61134110535
7213511301
oct60632273
926057645
1012793019
117248648
12434b44b
13285bc45
1419b0271
1511ca7ce
hexc334bb

12793019 has 4 divisors (see below), whose sum is σ = 12811344. Its totient is φ = 12774696.

The previous prime is 12793007. The next prime is 12793021. The reversal of 12793019 is 91039721.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12793019 - 28 = 12792763 is a prime.

It is a super-2 number, since 2×127930192 = 327322670268722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12793519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8072 + ... + 9525.

It is an arithmetic number, because the mean of its divisors is an integer number (3202836).

Almost surely, 212793019 is an apocalyptic number.

12793019 is a deficient number, since it is larger than the sum of its proper divisors (18325).

12793019 is an equidigital number, since it uses as much as digits as its factorization.

12793019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18324.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 12793019 is about 3576.7330065298. The cubic root of 12793019 is about 233.8788851406.

The spelling of 12793019 in words is "twelve million, seven hundred ninety-three thousand, nineteen".

Divisors: 1 727 17597 12793019