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13304445 = 3571111519
BaseRepresentation
bin110010110000…
…001001111101
3221000221021020
4302300021331
511401220240
61153054353
7221041320
oct62601175
927027236
1013304445
117567910
1245573b9
1329aa96b
141aa47b7
15127c0d0
hexcb027d

13304445 has 32 divisors (see below), whose sum is σ = 26542080. Its totient is φ = 5528640.

The previous prime is 13304443. The next prime is 13304453. The reversal of 13304445 is 54440331.

13304445 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 13304445 - 21 = 13304443 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13304443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4605 + ... + 6914.

It is an arithmetic number, because the mean of its divisors is an integer number (829440).

Almost surely, 213304445 is an apocalyptic number.

13304445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13304445 is a deficient number, since it is larger than the sum of its proper divisors (13237635).

13304445 is a wasteful number, since it uses less digits than its factorization.

13304445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11545.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 13304445 is about 3647.5258737945. The cubic root of 13304445 is about 236.9548419364.

Adding to 13304445 its reverse (54440331), we get a palindrome (67744776).

It can be divided in two parts, 1330 and 4445, that added together give a palindrome (5775).

The spelling of 13304445 in words is "thirteen million, three hundred four thousand, four hundred forty-five".

Divisors: 1 3 5 7 11 15 21 33 35 55 77 105 165 231 385 1155 11519 34557 57595 80633 126709 172785 241899 380127 403165 633545 886963 1209495 1900635 2660889 4434815 13304445