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12195244 = 2223711867
BaseRepresentation
bin101110100001…
…010110101100
3211221120201201
4232201112230
511110221434
61113215244
7205441435
oct56412654
924846651
1012195244
11697a516
124101524
1326acb29
14189648c
15110d614
hexba15ac

12195244 has 24 divisors (see below), whose sum is σ = 22595328. Its totient is φ = 5747280.

The previous prime is 12195233. The next prime is 12195251. The reversal of 12195244 is 44259121.

12195244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5599 + ... + 7465.

It is an arithmetic number, because the mean of its divisors is an integer number (941472).

Almost surely, 212195244 is an apocalyptic number.

12195244 is the 1867-th nonagonal number.

It is an amenable number.

12195244 is a deficient number, since it is larger than the sum of its proper divisors (10400084).

12195244 is a wasteful number, since it uses less digits than its factorization.

12195244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965 (or 1963 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 12195244 is about 3492.1689535302. The cubic root of 12195244 is about 230.1778334802.

It can be divided in two parts, 12195 and 244, that multiplied together give a triangular number (2975580 = T2439).

The spelling of 12195244 in words is "twelve million, one hundred ninety-five thousand, two hundred forty-four".

Divisors: 1 2 4 23 46 71 92 142 284 1633 1867 3266 3734 6532 7468 42941 85882 132557 171764 265114 530228 3048811 6097622 12195244