Search a number
-
+
20302331230 = 257512703373
BaseRepresentation
bin10010111010000111…
…001111110101011110
31221101220102021201201
4102322013033311132
5313034344044410
613154325230114
71316052653026
oct227207176536
957356367651
1020302331230
118679155a45
123b2726233a
131bb721085c
14da8504a86
157dc58a83a
hex4ba1cfd5e

20302331230 has 16 divisors (see below), whose sum is σ = 36592870464. Its totient is φ = 8110116000.

The previous prime is 20302331227. The next prime is 20302331237. The reversal of 20302331230 is 3213320302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20302331198 and 20302331207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302331237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1344177 + ... + 1359196.

It is an arithmetic number, because the mean of its divisors is an integer number (2287054404).

Almost surely, 220302331230 is an apocalyptic number.

20302331230 is a deficient number, since it is larger than the sum of its proper divisors (16290539234).

20302331230 is a wasteful number, since it uses less digits than its factorization.

20302331230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704131.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20302331230 its reverse (3213320302), we get a palindrome (23515651532).

The spelling of 20302331230 in words is "twenty billion, three hundred two million, three hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 751 1502 3755 7510 2703373 5406746 13516865 27033730 2030233123 4060466246 10151165615 20302331230