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12868671 = 36536569
BaseRepresentation
bin110001000101…
…110000111111
3220012210111110
4301011300333
511243244141
61135453103
7214244664
oct61056077
926183443
1012868671
11729a472
124387193
1328874ca
1419cda6b
1511e2e16
hexc45c3f

12868671 has 8 divisors (see below), whose sum is σ = 17187120. Its totient is φ = 8564672.

The previous prime is 12868657. The next prime is 12868697. The reversal of 12868671 is 17686821.

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 12868671 - 26 = 12868607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12868651) 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 7 ways as a sum of consecutive naturals, for example, 1326 + ... + 5243.

It is an arithmetic number, because the mean of its divisors is an integer number (2148390).

Almost surely, 212868671 is an apocalyptic number.

12868671 is a deficient number, since it is larger than the sum of its proper divisors (4318449).

12868671 is an equidigital number, since it uses as much as digits as its factorization.

12868671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7225.

The product of its digits is 32256, while the sum is 39.

The square root of 12868671 is about 3587.2929905431. The cubic root of 12868671 is about 234.3389965674.

The spelling of 12868671 in words is "twelve million, eight hundred sixty-eight thousand, six hundred seventy-one".

Divisors: 1 3 653 1959 6569 19707 4289557 12868671