Search a number
-
+
285602144 = 2597101911
BaseRepresentation
bin10001000001011…
…111000101100000
3201220102002111012
4101001133011200
51041103232034
644201240052
710035402212
oct2101370540
9656362435
10285602144
11137240133
127b793028
1347229569
1429d065b2
151a117cce
hex1105f160

285602144 has 48 divisors (see below), whose sum is σ = 574330176. Its totient is φ = 139776000.

The previous prime is 285602131. The next prime is 285602147. The reversal of 285602144 is 441206582.

285602144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 285602144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285602147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313049 + ... + 313959.

It is an arithmetic number, because the mean of its divisors is an integer number (11965212).

Almost surely, 2285602144 is an apocalyptic number.

It is an amenable number.

285602144 is an abundant number, since it is smaller than the sum of its proper divisors (288728032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285602144 is a wasteful number, since it uses less digits than its factorization.

285602144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119 (or 1111 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 285602144 is about 16899.7675723662. The cubic root of 285602144 is about 658.5475743605.

The spelling of 285602144 in words is "two hundred eighty-five million, six hundred two thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 32 97 101 194 202 388 404 776 808 911 1552 1616 1822 3104 3232 3644 7288 9797 14576 19594 29152 39188 78376 88367 92011 156752 176734 184022 313504 353468 368044 706936 736088 1413872 1472176 2827744 2944352 8925067 17850134 35700268 71400536 142801072 285602144