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12663133 = 72378653
BaseRepresentation
bin110000010011…
…100101011101
3212211100112221
4300103211131
511220210013
61131225341
7212430520
oct60234535
925740487
1012663133
117169aaa
1242a8251
132814aa2
141978bb7
1511a208d
hexc1395d

12663133 has 8 divisors (see below), whose sum is σ = 15101568. Its totient is φ = 10382064.

The previous prime is 12663127. The next prime is 12663143. The reversal of 12663133 is 33136621.

12663133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12663133 - 217 = 12532061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12663098 and 12663107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39166 + ... + 39487.

It is an arithmetic number, because the mean of its divisors is an integer number (1887696).

Almost surely, 212663133 is an apocalyptic number.

It is an amenable number.

12663133 is a deficient number, since it is larger than the sum of its proper divisors (2438435).

12663133 is an equidigital number, since it uses as much as digits as its factorization.

12663133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78683.

The product of its digits is 1944, while the sum is 25.

The square root of 12663133 is about 3558.5296120729. The cubic root of 12663133 is about 233.0846763770.

Adding to 12663133 its reverse (33136621), we get a palindrome (45799754).

The spelling of 12663133 in words is "twelve million, six hundred sixty-three thousand, one hundred thirty-three".

Divisors: 1 7 23 161 78653 550571 1809019 12663133