Search a number
-
+
3141895 = 5628379
BaseRepresentation
bin1011111111000100000111
312220121212111
423333010013
51301020040
6151201451
735464021
oct13770407
95817774
103141895
111856609
121076287
13860113
145bb011
15420dea
hex2ff107

3141895 has 4 divisors (see below), whose sum is σ = 3770280. Its totient is φ = 2513512.

The previous prime is 3141883. The next prime is 3141899. The reversal of 3141895 is 5981413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5981413 = 33717749.

It is a cyclic number.

It is not a de Polignac number, because 3141895 - 25 = 3141863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3141899) 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 3 ways as a sum of consecutive naturals, for example, 314185 + ... + 314194.

It is an arithmetic number, because the mean of its divisors is an integer number (942570).

Almost surely, 23141895 is an apocalyptic number.

3141895 is a deficient number, since it is larger than the sum of its proper divisors (628385).

3141895 is an equidigital number, since it uses as much as digits as its factorization.

3141895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628384.

The product of its digits is 4320, while the sum is 31.

The square root of 3141895 is about 1772.5391392012. The cubic root of 3141895 is about 146.4638870090.

It can be divided in two parts, 31418 and 95, that added together give a palindrome (31513).

The spelling of 3141895 in words is "three million, one hundred forty-one thousand, eight hundred ninety-five".

Divisors: 1 5 628379 3141895