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13189245 = 35879283
BaseRepresentation
bin110010010100…
…000001111101
3220211002020120
4302110001331
511334023440
61150405153
7220051416
oct62240175
926732216
1013189245
117499303
1245007b9
13296a3b4
141a7480d
151257dd0
hexc9407d

13189245 has 8 divisors (see below), whose sum is σ = 21102816. Its totient is φ = 7034256.

The previous prime is 13189243. The next prime is 13189259. The reversal of 13189245 is 54298131.

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

It is not a de Polignac number, because 13189245 - 21 = 13189243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13189243) 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, 439627 + ... + 439656.

It is an arithmetic number, because the mean of its divisors is an integer number (2637852).

Almost surely, 213189245 is an apocalyptic number.

13189245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13189245 is a deficient number, since it is larger than the sum of its proper divisors (7913571).

13189245 is an equidigital number, since it uses as much as digits as its factorization.

13189245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879291.

The product of its digits is 8640, while the sum is 33.

The square root of 13189245 is about 3631.7000151444. The cubic root of 13189245 is about 236.2689467182.

The spelling of 13189245 in words is "thirteen million, one hundred eighty-nine thousand, two hundred forty-five".

Divisors: 1 3 5 15 879283 2637849 4396415 13189245