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12902943 = 36776353
BaseRepresentation
bin110001001110…
…001000011111
3220021112111210
4301032020133
511300343233
61140315503
7214446624
oct61161037
926245453
1012902943
117313199
1243a2b93
132899ca1
1419dc34b
1511ed163
hexc4e21f

12902943 has 8 divisors (see below), whose sum is σ = 17232048. Its totient is φ = 8587904.

The previous prime is 12902891. The next prime is 12902951. The reversal of 12902943 is 34920921.

12902943 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 a cyclic number.

It is not a de Polignac number, because 12902943 - 29 = 12902431 is a prime.

It is a super-2 number, since 2×129029432 = 332971876122498, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12902943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12902993) 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, 1146 + ... + 5207.

It is an arithmetic number, because the mean of its divisors is an integer number (2154006).

Almost surely, 212902943 is an apocalyptic number.

12902943 is a deficient number, since it is larger than the sum of its proper divisors (4329105).

12902943 is an equidigital number, since it uses as much as digits as its factorization.

12902943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7033.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 12902943 is about 3592.0666753277. The cubic root of 12902943 is about 234.5468436446.

The spelling of 12902943 in words is "twelve million, nine hundred two thousand, nine hundred forty-three".

Divisors: 1 3 677 2031 6353 19059 4300981 12902943