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12773971 = 72278039
BaseRepresentation
bin110000101110…
…101001010011
3220000222121001
4300232221103
511232231341
61133442431
7213401620
oct60565123
926028531
1012773971
117235301
124340417
132853382
1419a7347
1511c4d31
hexc2ea53

12773971 has 8 divisors (see below), whose sum is σ = 14664960. Its totient is φ = 10899528.

The previous prime is 12773951. The next prime is 12774029. The reversal of 12773971 is 17937721.

12773971 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 12773971 - 29 = 12773459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12773971.

It is not an unprimeable number, because it can be changed into a prime (12773911) 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, 2431 + ... + 5608.

It is an arithmetic number, because the mean of its divisors is an integer number (1833120).

Almost surely, 212773971 is an apocalyptic number.

12773971 is a deficient number, since it is larger than the sum of its proper divisors (1890989).

12773971 is an equidigital number, since it uses as much as digits as its factorization.

12773971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8273.

The product of its digits is 18522, while the sum is 37.

The square root of 12773971 is about 3574.0692494690. The cubic root of 12773971 is about 233.7627505032.

The spelling of 12773971 in words is "twelve million, seven hundred seventy-three thousand, nine hundred seventy-one".

Divisors: 1 7 227 1589 8039 56273 1824853 12773971