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12985219 = 138531171
BaseRepresentation
bin110001100010…
…001110000011
3220102201101001
4301202032003
511311011334
61142152431
7215241532
oct61421603
926381331
1012985219
117369a95
124422717
1328c8580
141a20319
151217714
hexc62383

12985219 has 8 divisors (see below), whose sum is σ = 14012432. Its totient is φ = 11962080.

The previous prime is 12985213. The next prime is 12985223. The reversal of 12985219 is 91258921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12985219 - 29 = 12984707 is a prime.

It is a super-2 number, since 2×129852192 = 337231824955922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12985213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10504 + ... + 11674.

It is an arithmetic number, because the mean of its divisors is an integer number (1751554).

Almost surely, 212985219 is an apocalyptic number.

12985219 is a deficient number, since it is larger than the sum of its proper divisors (1027213).

12985219 is a wasteful number, since it uses less digits than its factorization.

12985219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037.

The product of its digits is 12960, while the sum is 37.

The square root of 12985219 is about 3603.5009365893. The cubic root of 12985219 is about 235.0443193913.

The spelling of 12985219 in words is "twelve million, nine hundred eighty-five thousand, two hundred nineteen".

Divisors: 1 13 853 1171 11089 15223 998863 12985219