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12917433 = 317247317
BaseRepresentation
bin110001010001…
…101010111001
3220022021101110
4301101222321
511301324213
61140510533
7214540104
oct61215271
926267343
1012917433
117323071
1243ab449
1328a3769
141a0373b
1512025c3
hexc51ab9

12917433 has 24 divisors (see below), whose sum is σ = 18744192. Its totient is φ = 7907584.

The previous prime is 12917431. The next prime is 12917449. The reversal of 12917433 is 33471921.

12917433 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12917433 - 21 = 12917431 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12917433.

It is not an unprimeable number, because it can be changed into a prime (12917431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40591 + ... + 40907.

It is an arithmetic number, because the mean of its divisors is an integer number (781008).

Almost surely, 212917433 is an apocalyptic number.

It is an amenable number.

12917433 is a deficient number, since it is larger than the sum of its proper divisors (5826759).

12917433 is a wasteful number, since it uses less digits than its factorization.

12917433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 384 counting only the distinct ones).

The product of its digits is 4536, while the sum is 30.

The square root of 12917433 is about 3594.0830541322. The cubic root of 12917433 is about 234.6346094707.

The spelling of 12917433 in words is "twelve million, nine hundred seventeen thousand, four hundred thirty-three".

Divisors: 1 3 17 47 51 141 289 317 799 867 951 2397 5389 13583 14899 16167 40749 44697 91613 253283 274839 759849 4305811 12917433