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12070287 = 321341143
BaseRepresentation
bin101110000010…
…110110001111
3211201020022200
4232002312033
511042222122
61110412543
7204411225
oct56026617
924636280
1012070287
1168a4649
124061153
132667ca8
141862b15
1510d65ac
hexb82d8f

12070287 has 6 divisors (see below), whose sum is σ = 17434872. Its totient is φ = 8046852.

The previous prime is 12070283. The next prime is 12070297. The reversal of 12070287 is 78207021.

It is not a de Polignac number, because 12070287 - 22 = 12070283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12070287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12070283) 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 5 ways as a sum of consecutive naturals, for example, 670563 + ... + 670580.

It is an arithmetic number, because the mean of its divisors is an integer number (2905812).

Almost surely, 212070287 is an apocalyptic number.

12070287 is a deficient number, since it is larger than the sum of its proper divisors (5364585).

12070287 is a wasteful number, since it uses less digits than its factorization.

12070287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341149 (or 1341146 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 12070287 is about 3474.2318575478. The cubic root of 12070287 is about 229.3889704583.

It can be divided in two parts, 120 and 70287, that added together give a palindrome (70407).

The spelling of 12070287 in words is "twelve million, seventy thousand, two hundred eighty-seven".

Divisors: 1 3 9 1341143 4023429 12070287