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12797071 = 71828153
BaseRepresentation
bin110000110100…
…010010001111
3220002011021121
4300310102033
511234001241
61134141411
7213526150
oct60642217
926064247
1012797071
1172506a1
124351867
132860a41
1419b1927
1511cbad1
hexc3448f

12797071 has 4 divisors (see below), whose sum is σ = 14625232. Its totient is φ = 10968912.

The previous prime is 12797069. The next prime is 12797087. The reversal of 12797071 is 17079721.

12797071 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12797071 - 21 = 12797069 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 (12797171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914070 + ... + 914083.

It is an arithmetic number, because the mean of its divisors is an integer number (3656308).

Almost surely, 212797071 is an apocalyptic number.

12797071 is a deficient number, since it is larger than the sum of its proper divisors (1828161).

12797071 is an equidigital number, since it uses as much as digits as its factorization.

12797071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828160.

The product of its (nonzero) digits is 6174, while the sum is 34.

The square root of 12797071 is about 3577.2994003857. The cubic root of 12797071 is about 233.9035750960.

The spelling of 12797071 in words is "twelve million, seven hundred ninety-seven thousand, seventy-one".

Divisors: 1 7 1828153 12797071