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11020030020 = 223351719234167
BaseRepresentation
bin10100100001101100…
…00101000001000100
31001110000010112021000
422100312011001010
5140032111430040
65021301253300
7540041465256
oct122066050104
931400115230
1011020030020
11474557972a
122176704230
13106811b62c
14767805cd6
154476e9130
hex290d85044

11020030020 has 768 divisors, whose sum is σ = 41455411200. Its totient is φ = 2408693760.

The previous prime is 11020029991. The next prime is 11020030031. The reversal of 11020030020 is 2003002011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11020029984 and 11020030011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 164478027 + ... + 164478093.

It is an arithmetic number, because the mean of its divisors is an integer number (53978400).

Almost surely, 211020030020 is an apocalyptic number.

11020030020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11020030020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20727705600).

11020030020 is an abundant number, since it is smaller than the sum of its proper divisors (30435381180).

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

11020030020 is a wasteful number, since it uses less digits than its factorization.

11020030020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 11020030020 its reverse (2003002011), we get a palindrome (13023032031).

The spelling of 11020030020 in words is "eleven billion, twenty million, thirty thousand, twenty".