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20331122030010 = 23351183296927779
BaseRepresentation
bin1001001111101101101010…
…10011100111010110111010
32122222122011211222110121000
410213312311103213112322
510131101114214430020
6111123553304225430
74165606104601521
oct447666523472672
978878154873530
1020331122030010
11652942039a0a0
12234438376b276
13b462a7a9c7cc
1450406283d4b8
15253cd4907090
hex127db54e75ba

20331122030010 has 256 divisors, whose sum is σ = 59879990016000. Its totient is φ = 4867558940160.

The previous prime is 20331122030003. The next prime is 20331122030099. The reversal of 20331122030010 is 1003022113302.

20331122030010 is a `hidden beast` number, since 2 + 0 + 331 + 1 + 2 + 20 + 300 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 731874301 + ... + 731902079.

It is an arithmetic number, because the mean of its divisors is an integer number (233906211000).

Almost surely, 220331122030010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20331122030010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29939995008000).

20331122030010 is an abundant number, since it is smaller than the sum of its proper divisors (39548867985990).

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

20331122030010 is a wasteful number, since it uses less digits than its factorization.

20331122030010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30858 (or 30852 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20331122030010 its reverse (1003022113302), we get a palindrome (21334144143312).

The spelling of 20331122030010 in words is "twenty trillion, three hundred thirty-one billion, one hundred twenty-two million, thirty thousand, ten".