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12883641 = 34294547
BaseRepresentation
bin110001001001…
…011010111001
3220020120000220
4301021122321
511244234031
61140050253
7214336431
oct61113271
926216026
1012883641
1172aa741
124393989
132891274
1419d52c1
1511e7596
hexc496b9

12883641 has 4 divisors (see below), whose sum is σ = 17178192. Its totient is φ = 8589092.

The previous prime is 12883639. The next prime is 12883643. The reversal of 12883641 is 14638821.

12883641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14638821 = 34879607.

It is an interprime number because it is at equal distance from previous prime (12883639) and next prime (12883643).

It is a cyclic number.

It is not a de Polignac number, because 12883641 - 21 = 12883639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12883643) 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, 2147271 + ... + 2147276.

It is an arithmetic number, because the mean of its divisors is an integer number (4294548).

Almost surely, 212883641 is an apocalyptic number.

It is an amenable number.

12883641 is a deficient number, since it is larger than the sum of its proper divisors (4294551).

12883641 is an equidigital number, since it uses as much as digits as its factorization.

12883641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4294550.

The product of its digits is 9216, while the sum is 33.

The square root of 12883641 is about 3589.3789156343. The cubic root of 12883641 is about 234.4298294478.

The spelling of 12883641 in words is "twelve million, eight hundred eighty-three thousand, six hundred forty-one".

Divisors: 1 3 4294547 12883641