Search a number
-
+
20304036 = 22327512
BaseRepresentation
bin100110101110…
…1000010100100
31102012112220100
41031131002210
520144212121
62003104100
7334403304
oct115350244
942175810
1020304036
11105087a5
126972030
13428b92c
1429a7604
151bb1026
hex135d0a4

20304036 has 27 divisors (see below), whose sum is σ = 51392523. Its totient is φ = 6759000.

The previous prime is 20304029. The next prime is 20304049. The reversal of 20304036 is 63040302.

The square root of 20304036 is 4506.

It is a perfect power (a square), and thus also a powerful number.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 26661 + ... + 27411.

Almost surely, 220304036 is an apocalyptic number.

20304036 is the 4506-th square number.

It is an amenable number.

20304036 is an abundant number, since it is smaller than the sum of its proper divisors (31088487).

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

20304036 is an equidigital number, since it uses as much as digits as its factorization.

20304036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512 (or 756 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The cubic root of 20304036 is about 272.8103178618.

Adding to 20304036 its reverse (63040302), we get a palindrome (83344338).

The spelling of 20304036 in words is "twenty million, three hundred four thousand, thirty-six".

Divisors: 1 2 3 4 6 9 12 18 36 751 1502 2253 3004 4506 6759 9012 13518 27036 564001 1128002 1692003 2256004 3384006 5076009 6768012 10152018 20304036