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12838093 = 72717659
BaseRepresentation
bin110000111110…
…010011001101
3220011020112221
4300332103031
511241304333
61135055341
7214056562
oct60762315
926136487
1012838093
1172794a4
124371551
132876608
1419c2869
1511d8d2d
hexc3e4cd

12838093 has 4 divisors (see below), whose sum is σ = 12856480. Its totient is φ = 12819708.

The previous prime is 12838079. The next prime is 12838103. The reversal of 12838093 is 39083821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12838093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12838013) 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, 8103 + ... + 9556.

It is an arithmetic number, because the mean of its divisors is an integer number (3214120).

Almost surely, 212838093 is an apocalyptic number.

It is an amenable number.

12838093 is a deficient number, since it is larger than the sum of its proper divisors (18387).

12838093 is an equidigital number, since it uses as much as digits as its factorization.

12838093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18386.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 12838093 is about 3583.0284676514. The cubic root of 12838093 is about 234.1532405068.

The spelling of 12838093 in words is "twelve million, eight hundred thirty-eight thousand, ninety-three".

Divisors: 1 727 17659 12838093