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12877071 = 34292357
BaseRepresentation
bin110001000111…
…110100001111
3220020020000120
4301013310033
511244031241
61140000023
7214311324
oct61076417
926206016
1012877071
1172a5809
124390013
13288b28c
1419d2b4b
1511e5666
hexc47d0f

12877071 has 4 divisors (see below), whose sum is σ = 17169432. Its totient is φ = 8584712.

The previous prime is 12877069. The next prime is 12877097. The reversal of 12877071 is 17077821.

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 12877071 - 21 = 12877069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12877001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2146176 + ... + 2146181.

It is an arithmetic number, because the mean of its divisors is an integer number (4292358).

Almost surely, 212877071 is an apocalyptic number.

12877071 is a deficient number, since it is larger than the sum of its proper divisors (4292361).

12877071 is an equidigital number, since it uses as much as digits as its factorization.

12877071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292360.

The product of its (nonzero) digits is 5488, while the sum is 33.

The square root of 12877071 is about 3588.4635988122. The cubic root of 12877071 is about 234.3899735856.

The spelling of 12877071 in words is "twelve million, eight hundred seventy-seven thousand, seventy-one".

Divisors: 1 3 4292357 12877071