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13158105 = 353128297
BaseRepresentation
bin110010001100…
…011011011001
3220202111112020
4302030123121
511332024410
61150005053
7216561552
oct62143331
926674466
1013158105
117477974
1244a6789
13295917c
141a67329
15124da70
hexc8c6d9

13158105 has 16 divisors (see below), whose sum is σ = 21732864. Its totient is φ = 6791040.

The previous prime is 13158091. The next prime is 13158107. The reversal of 13158105 is 50185131.

13158105 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-13158105 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13158107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13684 + ... + 14613.

It is an arithmetic number, because the mean of its divisors is an integer number (1358304).

Almost surely, 213158105 is an apocalyptic number.

13158105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13158105 is a deficient number, since it is larger than the sum of its proper divisors (8574759).

13158105 is a wasteful number, since it uses less digits than its factorization.

13158105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28336.

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 13158105 is about 3627.4102332105. The cubic root of 13158105 is about 236.0828553756.

The spelling of 13158105 in words is "thirteen million, one hundred fifty-eight thousand, one hundred five".

Divisors: 1 3 5 15 31 93 155 465 28297 84891 141485 424455 877207 2631621 4386035 13158105