Search a number
-
+
20301203242 = 217240187589
BaseRepresentation
bin10010111010000010…
…111100011100101010
31221101211021222102101
4102322002330130222
5313034102000432
613154245124014
71316040244315
oct227202743452
957354258371
1020301203242
118678555521
123b269b960a
131bb6c072c8
14da82cd97c
157dc4164e7
hex4ba0bc72a

20301203242 has 24 divisors (see below), whose sum is σ = 32429496780. Its totient is φ = 9529574400.

The previous prime is 20301203231. The next prime is 20301203243. The reversal of 20301203242 is 24230210302.

It can be written as a sum of positive squares in 6 ways, for example, as 18892777401 + 1408425841 = 137451^2 + 37529^2 .

It is not an unprimeable number, because it can be changed into a prime (20301203243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187984 + ... + 275572.

Almost surely, 220301203242 is an apocalyptic number.

20301203242 is a deficient number, since it is larger than the sum of its proper divisors (12128293538).

20301203242 is a wasteful number, since it uses less digits than its factorization.

20301203242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88026 (or 88009 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20301203242 its reverse (24230210302), we get a palindrome (44531413544).

The spelling of 20301203242 in words is "twenty billion, three hundred one million, two hundred three thousand, two hundred forty-two".

Divisors: 1 2 17 34 289 401 578 802 6817 13634 87589 115889 175178 231778 1489013 2978026 25313221 35123189 50626442 70246378 597094213 1194188426 10150601621 20301203242