Search a number
-
+
20202486 = 2318231847
BaseRepresentation
bin100110100010…
…0001111110110
31102000101121020
41031010033312
520132434421
62001002010
7333501243
oct115041766
942011536
1020202486
1110449477
126923306
134254645
14297c5ca
151b90dc6
hex13443f6

20202486 has 16 divisors (see below), whose sum is σ = 40449024. Its totient is φ = 6726824.

The previous prime is 20202467. The next prime is 20202493. The reversal of 20202486 is 68420202.

It is a congruent number.

It is an unprimeable 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, 10015 + ... + 11861.

It is an arithmetic number, because the mean of its divisors is an integer number (2528064).

Almost surely, 220202486 is an apocalyptic number.

20202486 is an abundant number, since it is smaller than the sum of its proper divisors (20246538).

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

20202486 is a wasteful number, since it uses less digits than its factorization.

20202486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 20202486 is about 4494.7175662104. The cubic root of 20202486 is about 272.3547400767.

Adding to 20202486 its reverse (68420202), we get a palindrome (88622688).

The spelling of 20202486 in words is "twenty million, two hundred two thousand, four hundred eighty-six".

Divisors: 1 2 3 6 1823 1847 3646 3694 5469 5541 10938 11082 3367081 6734162 10101243 20202486