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3905317 = 131997163
BaseRepresentation
bin1110111001011100100101
321100102002101
432321130211
51444432232
6215412101
745123523
oct16713445
97312071
103905317
112228139
121384031
13a69750
14739313
155221e7
hex3b9725

3905317 has 16 divisors (see below), whose sum is σ = 4500160. Its totient is φ = 3359232.

The previous prime is 3905299. The next prime is 3905323. The reversal of 3905317 is 7135093.

It is a 5-Lehmer number, since φ(3905317) divides (3905317-1)5.

It is a cyclic number.

It is not a de Polignac number, because 3905317 - 211 = 3903269 is a prime.

It is a Duffinian number.

3905317 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3905327) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 23878 + ... + 24040.

It is an arithmetic number, because the mean of its divisors is an integer number (281260).

Almost surely, 23905317 is an apocalyptic number.

It is an amenable number.

3905317 is a deficient number, since it is larger than the sum of its proper divisors (594843).

3905317 is a wasteful number, since it uses less digits than its factorization.

3905317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292.

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 3905317 is about 1976.1874911050. The cubic root of 3905317 is about 157.4775915042.

The spelling of 3905317 in words is "three million, nine hundred five thousand, three hundred seventeen".

Divisors: 1 13 19 97 163 247 1261 1843 2119 3097 15811 23959 40261 205543 300409 3905317