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13004219 = 29344383
BaseRepresentation
bin110001100110…
…110110111011
3220110200102202
4301212312323
511312113334
61142420415
7215351114
oct61466673
926420382
1013004219
117382298
12443170b
132904107
141a2720b
15121d17e
hexc66dbb

13004219 has 4 divisors (see below), whose sum is σ = 13048896. Its totient is φ = 12959544.

The previous prime is 13004207. The next prime is 13004261. The reversal of 13004219 is 91240031.

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 13004219 - 24 = 13004203 is a prime.

It is a super-2 number, since 2×130042192 = 338219423599922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13004219.

It is not an unprimeable number, because it can be changed into a prime (13004819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21899 + ... + 22484.

It is an arithmetic number, because the mean of its divisors is an integer number (3262224).

Almost surely, 213004219 is an apocalyptic number.

13004219 is a deficient number, since it is larger than the sum of its proper divisors (44677).

13004219 is an equidigital number, since it uses as much as digits as its factorization.

13004219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44676.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 13004219 is about 3606.1362980342. The cubic root of 13004219 is about 235.1589026389.

The spelling of 13004219 in words is "thirteen million, four thousand, two hundred nineteen".

Divisors: 1 293 44383 13004219