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12850087 = 89144383
BaseRepresentation
bin110001000001…
…001110100111
3220011212000011
4301001032213
511242200322
61135231051
7214136545
oct61011647
926155004
1012850087
117287508
124378487
13287bc03
1419c6d95
1511dc677
hexc413a7

12850087 has 4 divisors (see below), whose sum is σ = 12994560. Its totient is φ = 12705616.

The previous prime is 12850073. The next prime is 12850091. The reversal of 12850087 is 78005821.

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 12850087 - 27 = 12849959 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 (12857087) 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, 72103 + ... + 72280.

It is an arithmetic number, because the mean of its divisors is an integer number (3248640).

Almost surely, 212850087 is an apocalyptic number.

12850087 is a deficient number, since it is larger than the sum of its proper divisors (144473).

12850087 is an equidigital number, since it uses as much as digits as its factorization.

12850087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144472.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 12850087 is about 3584.7018007081. The cubic root of 12850087 is about 234.2261371026.

The spelling of 12850087 in words is "twelve million, eight hundred fifty thousand, eighty-seven".

Divisors: 1 89 144383 12850087