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12872733 = 34290911
BaseRepresentation
bin110001000110…
…110000011101
3220020000001220
4301012300131
511243411413
61135523553
7214262556
oct61066035
926200056
1012872733
1172a2525
1243895b9
132889303
1419d132d
1511e4223
hexc46c1d

12872733 has 4 divisors (see below), whose sum is σ = 17163648. Its totient is φ = 8581820.

The previous prime is 12872731. The next prime is 12872749. The reversal of 12872733 is 33727821.

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.

It is a cyclic number.

It is not a de Polignac number, because 12872733 - 21 = 12872731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12872694 and 12872703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12872731) 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 3 ways as a sum of consecutive naturals, for example, 2145453 + ... + 2145458.

It is an arithmetic number, because the mean of its divisors is an integer number (4290912).

Almost surely, 212872733 is an apocalyptic number.

It is an amenable number.

12872733 is a deficient number, since it is larger than the sum of its proper divisors (4290915).

12872733 is an equidigital number, since it uses as much as digits as its factorization.

12872733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4290914.

The product of its digits is 14112, while the sum is 33.

The square root of 12872733 is about 3587.8591109462. The cubic root of 12872733 is about 234.3636503660.

The spelling of 12872733 in words is "twelve million, eight hundred seventy-two thousand, seven hundred thirty-three".

Divisors: 1 3 4290911 12872733