Search a number
-
+
903142 = 217101263
BaseRepresentation
bin11011100011111100110
31200212212201
43130133212
5212400032
631205114
710451032
oct3343746
91625781
10903142
115675a9
1237679a
13258106
141971c2
1512c8e7
hexdc7e6

903142 has 16 divisors (see below), whose sum is σ = 1454112. Its totient is φ = 419200.

The previous prime is 903109. The next prime is 903143. The reversal of 903142 is 241309.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (903143) by changing a digit.

903142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 3303 + ... + 3565.

It is an arithmetic number, because the mean of its divisors is an integer number (90882).

2903142 is an apocalyptic number.

903142 is a deficient number, since it is larger than the sum of its proper divisors (550970).

903142 is a wasteful number, since it uses less digits than its factorization.

903142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 903142 is about 950.3378346672. The cubic root of 903142 is about 96.6611623237.

The spelling of 903142 in words is "nine hundred three thousand, one hundred forty-two".

Divisors: 1 2 17 34 101 202 263 526 1717 3434 4471 8942 26563 53126 451571 903142