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13000226 = 26500113
BaseRepresentation
bin110001100101…
…111000100010
3220110110221212
4301211320202
511312001401
61142350122
7215333351
oct61457042
926413855
1013000226
11737a298
12442b342
132902355
141a25998
15121bdbb
hexc65e22

13000226 has 4 divisors (see below), whose sum is σ = 19500342. Its totient is φ = 6500112.

The previous prime is 13000219. The next prime is 13000243. The reversal of 13000226 is 62200031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12609601 + 390625 = 3551^2 + 625^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13000226.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3250055 + ... + 3250058.

Almost surely, 213000226 is an apocalyptic number.

13000226 is a deficient number, since it is larger than the sum of its proper divisors (6500116).

13000226 is an equidigital number, since it uses as much as digits as its factorization.

13000226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500115.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13000226 is about 3605.5826158889. The cubic root of 13000226 is about 235.1348313325.

Adding to 13000226 its reverse (62200031), we get a palindrome (75200257).

The spelling of 13000226 in words is "thirteen million, two hundred twenty-six", and thus it is an aban number.

Divisors: 1 2 6500113 13000226