Search a number
-
+
30850 = 252617
BaseRepresentation
bin111100010000010
31120022121
413202002
51441400
6354454
7155641
oct74202
946277
1030850
11211a6
1215a2a
1311071
14b358
15921a
hex7882

30850 has 12 divisors (see below), whose sum is σ = 57474. Its totient is φ = 12320.

The previous prime is 30841. The next prime is 30851. The reversal of 30850 is 5803.

It can be written as a sum of positive squares in 3 ways, for example, as 13689 + 17161 = 117^2 + 131^2 .

It is not an unprimeable number, because it can be changed into a prime (30851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 259 + ... + 358.

230850 is an apocalyptic number.

30850 is a deficient number, since it is larger than the sum of its proper divisors (26624).

30850 is a wasteful number, since it uses less digits than its factorization.

30850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 30850 is about 175.6416807025. The cubic root of 30850 is about 31.3630571520.

It can be divided in two parts, 308 and 50, that multiplied together give a triangular number (15400 = T175).

The spelling of 30850 in words is "thirty thousand, eight hundred fifty".

Divisors: 1 2 5 10 25 50 617 1234 3085 6170 15425 30850