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13302289 = 7111397137
BaseRepresentation
bin110010101111…
…101000010001
3221000211022101
4302233220101
511401133124
61153040401
7221032120
oct62575021
927024271
1013302289
117566230
124556101
1329a99a0
141aa3ab7
15127b644
hexcafa11

13302289 has 32 divisors (see below), whose sum is σ = 18176256. Its totient is φ = 9400320.

The previous prime is 13302287. The next prime is 13302293. The reversal of 13302289 is 98220331.

13302289 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13302289 - 21 = 13302287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13302281) 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, 97029 + ... + 97165.

It is an arithmetic number, because the mean of its divisors is an integer number (568008).

Almost surely, 213302289 is an apocalyptic number.

It is an amenable number.

13302289 is a deficient number, since it is larger than the sum of its proper divisors (4873967).

13302289 is a wasteful number, since it uses less digits than its factorization.

13302289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13302289 is about 3647.2303190229. The cubic root of 13302289 is about 236.9420416471.

The spelling of 13302289 in words is "thirteen million, three hundred two thousand, two hundred eighty-nine".

Divisors: 1 7 11 13 77 91 97 137 143 679 959 1001 1067 1261 1507 1781 7469 8827 10549 12467 13289 13871 19591 93023 97097 137137 146179 172757 1023253 1209299 1900327 13302289