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13033261 is a prime number
BaseRepresentation
bin110001101101…
…111100101101
3220112011021101
4301231330231
511314031021
61143203101
7215531563
oct61557455
926464241
1013033261
1173a209a
124446491
1329143b7
141a33a33
151226a91
hexc6df2d

13033261 has 2 divisors, whose sum is σ = 13033262. Its totient is φ = 13033260.

The previous prime is 13033193. The next prime is 13033289. The reversal of 13033261 is 16233031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12888100 + 145161 = 3590^2 + 381^2 .

It is a cyclic number.

It is not a de Polignac number, because 13033261 - 29 = 13032749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13033661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6516630 + 6516631.

It is an arithmetic number, because the mean of its divisors is an integer number (6516631).

Almost surely, 213033261 is an apocalyptic number.

It is an amenable number.

13033261 is a deficient number, since it is larger than the sum of its proper divisors (1).

13033261 is an equidigital number, since it uses as much as digits as its factorization.

13033261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 13033261 is about 3610.1607997429. The cubic root of 13033261 is about 235.3338306657. Note that the first 3 decimals are identical.

Adding to 13033261 its reverse (16233031), we get a palindrome (29266292).

The spelling of 13033261 in words is "thirteen million, thirty-three thousand, two hundred sixty-one".