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12876081 = 34292027
BaseRepresentation
bin110001000111…
…100100110001
3220020011122220
4301013210301
511244013311
61135551253
7214305411
oct61074461
926204586
1012876081
1172a4a99
12438b529
13288a9aa
1419d2641
1511e5206
hexc47931

12876081 has 4 divisors (see below), whose sum is σ = 17168112. Its totient is φ = 8584052.

The previous prime is 12876079. The next prime is 12876103. The reversal of 12876081 is 18067821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12876081 - 21 = 12876079 is a prime.

It is a super-2 number, since 2×128760812 = 331586923837122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12876001) 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, 2146011 + ... + 2146016.

It is an arithmetic number, because the mean of its divisors is an integer number (4292028).

Almost surely, 212876081 is an apocalyptic number.

It is an amenable number.

12876081 is a deficient number, since it is larger than the sum of its proper divisors (4292031).

12876081 is an equidigital number, since it uses as much as digits as its factorization.

12876081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292030.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 12876081 is about 3588.3256541178. The cubic root of 12876081 is about 234.3839667325.

The spelling of 12876081 in words is "twelve million, eight hundred seventy-six thousand, eighty-one".

Divisors: 1 3 4292027 12876081