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13000075 = 5211411153
BaseRepresentation
bin110001100101…
…110110001011
3220110110202021
4301211312023
511312000300
61142345311
7215333044
oct61456613
926413667
1013000075
11737a170
12442b237
13290226a
141a258cb
15121bd1a
hexc65d8b

13000075 has 24 divisors (see below), whose sum is σ = 18030096. Its totient is φ = 9216000.

The previous prime is 13000069. The next prime is 13000081. The reversal of 13000075 is 57000031.

13000075 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13000069) and next prime (13000081).

It is not a de Polignac number, because 13000075 - 27 = 12999947 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10699 + ... + 11851.

It is an arithmetic number, because the mean of its divisors is an integer number (751254).

Almost surely, 213000075 is an apocalyptic number.

13000075 is a deficient number, since it is larger than the sum of its proper divisors (5030021).

13000075 is a wasteful number, since it uses less digits than its factorization.

13000075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215 (or 1210 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 16.

The square root of 13000075 is about 3605.5616760777. The cubic root of 13000075 is about 235.1339209510.

The spelling of 13000075 in words is "thirteen million, seventy-five", and thus it is an aban number and an uban number.

Divisors: 1 5 11 25 41 55 205 275 451 1025 1153 2255 5765 11275 12683 28825 47273 63415 236365 317075 520003 1181825 2600015 13000075