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4108145 = 523139257
BaseRepresentation
bin1111101010111101110001
321201201022112
433222331301
52022430040
6224015105
746630046
oct17527561
97651275
104108145
112356568
121461495
13b0ab72
1478d1cd
15562365
hex3eaf71

4108145 has 16 divisors (see below), whose sum is σ = 5201280. Its totient is φ = 3108864.

The previous prime is 4108141. The next prime is 4108163. The reversal of 4108145 is 5418014.

4108145 = T310 + T311 + ... + T378.

It is not a de Polignac number, because 4108145 - 22 = 4108141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 4108145.

It is not an unprimeable number, because it can be changed into a prime (4108141) 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, 15857 + ... + 16113.

It is an arithmetic number, because the mean of its divisors is an integer number (325080).

Almost surely, 24108145 is an apocalyptic number.

It is an amenable number.

4108145 is a deficient number, since it is larger than the sum of its proper divisors (1093135).

4108145 is a wasteful number, since it uses less digits than its factorization.

4108145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 4108145 is about 2026.8559396267. The cubic root of 4108145 is about 160.1579819801.

The spelling of 4108145 in words is "four million, one hundred eight thousand, one hundred forty-five".

Divisors: 1 5 23 115 139 257 695 1285 3197 5911 15985 29555 35723 178615 821629 4108145