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12025219 = 101911801
BaseRepresentation
bin101101110111…
…110110000011
3211121221111111
4231313312003
511034301334
61105424151
7204132643
oct55676603
924557444
1012025219
1168737a8
12403b057
13265061b
141850523
1510c8064
hexb77d83

12025219 has 4 divisors (see below), whose sum is σ = 12038040. Its totient is φ = 12012400.

The previous prime is 12025183. The next prime is 12025229. The reversal of 12025219 is 91252021.

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 12025219 - 29 = 12024707 is a prime.

It is a super-2 number, since 2×120252192 = 289211783995922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 12025219.

It is not an unprimeable number, because it can be changed into a prime (12025229) 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, 4882 + ... + 6919.

It is an arithmetic number, because the mean of its divisors is an integer number (3009510).

Almost surely, 212025219 is an apocalyptic number.

12025219 is a deficient number, since it is larger than the sum of its proper divisors (12821).

12025219 is a wasteful number, since it uses less digits than its factorization.

12025219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12820.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 12025219 is about 3467.7397537878. The cubic root of 12025219 is about 229.1031171153.

The spelling of 12025219 in words is "twelve million, twenty-five thousand, two hundred nineteen".

Divisors: 1 1019 11801 12025219