Search a number
20302 = 210151
BaseRepresentation
bin100111101001110
31000211221
410331032
51122202
6233554
7113122
oct47516
930757
1020302
1114287
12b8ba
139319
147582
156037
hex4f4e

20302 has 4 divisors (see below), whose sum is σ = 30456. Its totient is φ = 10150.

The previous prime is 20297. The next prime is 20323.

20302 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a pancake number, because a pancake can be divided into 20302 parts by 201 straight cuts.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5074 + ... + 5077.

It is an arithmetic number, because the mean of its divisors is an integer number (7614).

220302 is an apocalyptic number.

20302 is a deficient number, since it is larger than the sum of its proper divisors (10154).

20302 is a wasteful number, since it uses less digits than its factorization.

20302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10153.

The product of its (nonzero) digits is 12, while the sum is 7.

The square root of 20302 is about 142.4850869389. The cubic root of 20302 is about 27.2801198815.

The spelling of 20302 in words is "twenty thousand, three hundred two", and thus it is an iban number.

Divisors: 1 2 10151 20302