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12844072 = 231605509
BaseRepresentation
bin110000111111…
…110000101000
3220011112202101
4300333300220
511242002242
61135143144
7214113163
oct60776050
926145671
1012844072
117282a3a
124374ab4
132879257
1419c4ada
1511da9b7
hexc3fc28

12844072 has 8 divisors (see below), whose sum is σ = 24082650. Its totient is φ = 6422032.

The previous prime is 12844067. The next prime is 12844087. The reversal of 12844072 is 27044821.

12844072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9696996 + 3147076 = 3114^2 + 1774^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12844072.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802747 + ... + 802762.

Almost surely, 212844072 is an apocalyptic number.

It is an amenable number.

12844072 is a deficient number, since it is larger than the sum of its proper divisors (11238578).

12844072 is a wasteful number, since it uses less digits than its factorization.

12844072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605515 (or 1605511 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 12844072 is about 3583.8627205852. The cubic root of 12844072 is about 234.1895850777.

Adding to 12844072 its reverse (27044821), we get a palindrome (39888893).

It can be divided in two parts, 1284 and 4072, that added together give a triangular number (5356 = T103).

The spelling of 12844072 in words is "twelve million, eight hundred forty-four thousand, seventy-two".

Divisors: 1 2 4 8 1605509 3211018 6422036 12844072