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20304024433 = 7112373157051
BaseRepresentation
bin10010111010001101…
…101101001101110001
31221102000121022100221
4102322031231031301
5313040312240213
613154425413041
71316103234340
oct227215551561
957360538327
1020304024433
11867a102090
123b2793a181
131bb7684454
14da8825b57
157dc7c238d
hex4ba36d371

20304024433 has 32 divisors (see below), whose sum is σ = 26776737792. Its totient is φ = 14926032000.

The previous prime is 20304024431. The next prime is 20304024493. The reversal of 20304024433 is 33442040302.

It is not a de Polignac number, because 20304024433 - 21 = 20304024431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20304024398 and 20304024407.

It is not an unprimeable number, because it can be changed into a prime (20304024431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50758 + ... + 207808.

It is an arithmetic number, because the mean of its divisors is an integer number (836773056).

Almost surely, 220304024433 is an apocalyptic number.

20304024433 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20304024433 is a deficient number, since it is larger than the sum of its proper divisors (6472713359).

20304024433 is a wasteful number, since it uses less digits than its factorization.

20304024433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157165.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 20304024433 its reverse (33442040302), we get a palindrome (53746064735).

The spelling of 20304024433 in words is "twenty billion, three hundred four million, twenty-four thousand, four hundred thirty-three".

Divisors: 1 7 11 23 73 77 161 253 511 803 1679 1771 5621 11753 18469 129283 157051 1099357 1727561 3612173 11464723 12092927 25285211 39733903 80253061 126111953 263688629 278137321 882783671 1845820403 2900574919 20304024433