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12822985 = 571033557
BaseRepresentation
bin110000111010…
…100111001001
3220010110211101
4300322213021
511240313420
61134501401
7213664540
oct60724711
926113741
1012822985
11726910a
124364861
13286c786
1419bb157
1511d460a
hexc3a9c9

12822985 has 16 divisors (see below), whose sum is σ = 17761536. Its totient is φ = 8705088.

The previous prime is 12822973. The next prime is 12822989. The reversal of 12822985 is 58922821.

12822985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12822985 - 211 = 12820937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12822989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1827 + ... + 5383.

It is an arithmetic number, because the mean of its divisors is an integer number (1110096).

Almost surely, 212822985 is an apocalyptic number.

It is an amenable number.

12822985 is a deficient number, since it is larger than the sum of its proper divisors (4938551).

12822985 is a wasteful number, since it uses less digits than its factorization.

12822985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672.

The product of its digits is 23040, while the sum is 37.

The square root of 12822985 is about 3580.9195746344. The cubic root of 12822985 is about 234.0613531381.

The spelling of 12822985 in words is "twelve million, eight hundred twenty-two thousand, nine hundred eighty-five".

Divisors: 1 5 7 35 103 515 721 3557 3605 17785 24899 124495 366371 1831855 2564597 12822985