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20050 = 252401
BaseRepresentation
bin100111001010010
31000111121
410321102
51120200
6232454
7112312
oct47122
930447
1020050
1114078
12b72a
139184
147442
155e1a
hex4e52

20050 has 12 divisors (see below), whose sum is σ = 37386. Its totient is φ = 8000.

The previous prime is 20047. The next prime is 20051. The reversal of 20050 is 5002.

It can be written as a sum of positive squares in 3 ways, for example, as 19321 + 729 = 139^2 + 27^2 .

It is a sliding number, since 20050 = 50 + 20000 and 1/50 + 1/20000 = 0.020050.

It is an Ulam number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (20051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 151 + ... + 250.

220050 is an apocalyptic number.

20050 is a deficient number, since it is larger than the sum of its proper divisors (17336).

20050 is a wasteful number, since it uses less digits than its factorization.

20050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 7.

The square root of 20050 is about 141.5980225851. The cubic root of 20050 is about 27.1667774888.

Adding to 20050 its reverse (5002), we get a palindrome (25052).

It can be divided in two parts, 200 and 50, that multiplied together give a 4-th power (10000 = 104).

The spelling of 20050 in words is "twenty thousand, fifty".

Divisors: 1 2 5 10 25 50 401 802 2005 4010 10025 20050