Search a number
-
+
385105 = 5711003
BaseRepresentation
bin1011110000001010001
3201120021011
41132001101
544310410
612130521
73162520
oct1360121
9646234
10385105
11243376
12166a41
13106396
14a04b7
157918a
hex5e051

385105 has 8 divisors (see below), whose sum is σ = 528192. Its totient is φ = 264048.

The previous prime is 385087. The next prime is 385109. The reversal of 385105 is 501583.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-385105 is a prime.

It is a super-2 number, since 2×3851052 = 296611722050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (385109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5467 + ... + 5536.

It is an arithmetic number, because the mean of its divisors is an integer number (66024).

2385105 is an apocalyptic number.

385105 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

385105 is a deficient number, since it is larger than the sum of its proper divisors (143087).

385105 is a wasteful number, since it uses less digits than its factorization.

385105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11015.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 385105 is about 620.5682879426. The cubic root of 385105 is about 72.7544763289.

Adding to 385105 its reverse (501583), we get a palindrome (886688).

The spelling of 385105 in words is "three hundred eighty-five thousand, one hundred five".

Divisors: 1 5 7 35 11003 55015 77021 385105