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12847077 = 321427453
BaseRepresentation
bin110001000000…
…011111100101
3220011200212200
4301000133211
511242101302
61135205113
7214125015
oct61003745
926150780
1012847077
117285221
124376799
13287a729
1419c5c45
1511db81c
hexc407e5

12847077 has 6 divisors (see below), whose sum is σ = 18556902. Its totient is φ = 8564712.

The previous prime is 12847069. The next prime is 12847111. The reversal of 12847077 is 77074821.

It can be written as a sum of positive squares in only one way, i.e., 12047841 + 799236 = 3471^2 + 894^2 .

It is not a de Polignac number, because 12847077 - 23 = 12847069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12847007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 713718 + ... + 713735.

It is an arithmetic number, because the mean of its divisors is an integer number (3092817).

Almost surely, 212847077 is an apocalyptic number.

It is an amenable number.

12847077 is a deficient number, since it is larger than the sum of its proper divisors (5709825).

12847077 is a wasteful number, since it uses less digits than its factorization.

12847077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427459 (or 1427456 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 12847077 is about 3584.2819364553. The cubic root of 12847077 is about 234.2078473243.

The spelling of 12847077 in words is "twelve million, eight hundred forty-seven thousand, seventy-seven".

Divisors: 1 3 9 1427453 4282359 12847077