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13309197 = 311403309
BaseRepresentation
bin110010110001…
…010100001101
3221001011210020
4302301110031
511401343242
61153132353
7221061216
oct62612415
927034706
1013309197
117570440
12455a0b9
1329acb85
141aa640d
15127d6ec
hexcb150d

13309197 has 8 divisors (see below), whose sum is σ = 19358880. Its totient is φ = 8066160.

The previous prime is 13309169. The next prime is 13309213. The reversal of 13309197 is 79190331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13309197 - 210 = 13308173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 403309 = 13309197 / (1 + 3 + 3 + 0 + 9 + 1 + 9 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13309097) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 201622 + ... + 201687.

It is an arithmetic number, because the mean of its divisors is an integer number (2419860).

Almost surely, 213309197 is an apocalyptic number.

It is an amenable number.

13309197 is a deficient number, since it is larger than the sum of its proper divisors (6049683).

13309197 is a wasteful number, since it uses less digits than its factorization.

13309197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403323.

The product of its (nonzero) digits is 5103, while the sum is 33.

The square root of 13309197 is about 3648.1772160902. The cubic root of 13309197 is about 236.9830499370.

The spelling of 13309197 in words is "thirteen million, three hundred nine thousand, one hundred ninety-seven".

Divisors: 1 3 11 33 403309 1209927 4436399 13309197