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13304317 = 131023409
BaseRepresentation
bin110010110000…
…000111111101
3221000221002111
4302300013331
511401214232
61153054021
7221041045
oct62600775
927027074
1013304317
117567804
124557311
1329aa8a0
141aa4725
15127c047
hexcb01fd

13304317 has 4 divisors (see below), whose sum is σ = 14327740. Its totient is φ = 12280896.

The previous prime is 13304303. The next prime is 13304383. The reversal of 13304317 is 71340331.

It is a happy number.

13304317 is digitally balanced in base 3, 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 an emirpimes, since its reverse is a distinct semiprime: 71340331 = 312301301.

It can be written as a sum of positive squares in 2 ways, for example, as 7257636 + 6046681 = 2694^2 + 2459^2 .

It is a cyclic number.

It is not a de Polignac number, because 13304317 - 215 = 13271549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13304717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511692 + ... + 511717.

It is an arithmetic number, because the mean of its divisors is an integer number (3581935).

Almost surely, 213304317 is an apocalyptic number.

It is an amenable number.

13304317 is a deficient number, since it is larger than the sum of its proper divisors (1023423).

13304317 is a wasteful number, since it uses less digits than its factorization.

13304317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023422.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 13304317 is about 3647.5083276122. The cubic root of 13304317 is about 236.9540820321.

Adding to 13304317 its reverse (71340331), we get a palindrome (84644648).

It can be divided in two parts, 13 and 304317, that multiplied together give a square (3956121 = 19892).

The spelling of 13304317 in words is "thirteen million, three hundred four thousand, three hundred seventeen".

Divisors: 1 13 1023409 13304317