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20304024432 = 2431907922171
BaseRepresentation
bin10010111010001101…
…101101001101110000
31221102000121022100220
4102322031231031300
5313040312240212
613154425413040
71316103234336
oct227215551560
957360538326
1020304024432
11867a10208a
123b2793a180
131bb7684453
14da8825b56
157dc7c238c
hex4ba36d370

20304024432 has 40 divisors (see below), whose sum is σ = 52457178240. Its totient is φ = 6767348160.

The previous prime is 20304024431. The next prime is 20304024493. The reversal of 20304024432 is 23442040302.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20304024431) 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, 904707 + ... + 926877.

It is an arithmetic number, because the mean of its divisors is an integer number (1311429456).

Almost surely, 220304024432 is an apocalyptic number.

It is an amenable number.

20304024432 is an abundant number, since it is smaller than the sum of its proper divisors (32153153808).

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

20304024432 is a wasteful number, since it uses less digits than its factorization.

20304024432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41261 (or 41255 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 20304024432 its reverse (23442040302), we get a palindrome (43746064734).

The spelling of 20304024432 in words is "twenty billion, three hundred four million, twenty-four thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 19079 22171 38158 44342 57237 66513 76316 88684 114474 133026 152632 177368 228948 266052 305264 354736 457896 532104 915792 1064208 423000509 846001018 1269001527 1692002036 2538003054 3384004072 5076006108 6768008144 10152012216 20304024432