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20384658050 = 2521346930269
BaseRepresentation
bin10010111111000001…
…010011001010000010
31221121122022220220012
4102333001103022002
5313221433024200
613210425544522
71321102506641
oct227701231202
957548286805
1020384658050
118710676339
123b4a945142
131bcb2a7053
14db5415358
157e48eda35
hex4bf053282

20384658050 has 24 divisors (see below), whose sum is σ = 37919531700. Its totient is φ = 8152988480.

The previous prime is 20384658037. The next prime is 20384658071. The reversal of 20384658050 is 5085648302.

It can be written as a sum of positive squares in 6 ways, for example, as 12311455849 + 8073202201 = 110957^2 + 89851^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20384657989 and 20384658007.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 658316 + ... + 688584.

Almost surely, 220384658050 is an apocalyptic number.

20384658050 is a deficient number, since it is larger than the sum of its proper divisors (17534873650).

20384658050 is a wasteful number, since it uses less digits than its factorization.

20384658050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43750 (or 43745 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 20384658050 in words is "twenty billion, three hundred eighty-four million, six hundred fifty-eight thousand, fifty".

Divisors: 1 2 5 10 25 50 13469 26938 30269 60538 67345 134690 151345 302690 336725 673450 756725 1513450 407693161 815386322 2038465805 4076931610 10192329025 20384658050