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20331003200 = 2652196131091
BaseRepresentation
bin10010111011110100…
…100111110101000000
31221110220100222021112
4102323310213311000
5313114214100300
613201231542452
71316551450544
oct227364476500
957426328245
1020331003200
118693359692
123b3498aa28
131bc013c211
14dac249a24
157ded50e35
hex4bbd27d40

20331003200 has 168 divisors, whose sum is σ = 52794225120. Its totient is φ = 7684761600.

The previous prime is 20331003197. The next prime is 20331003223. The reversal of 20331003200 is 230013302.

It is a super-2 number, since 2×203310032002 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18634655 + ... + 18635745.

It is an arithmetic number, because the mean of its divisors is an integer number (314251340).

Almost surely, 220331003200 is an apocalyptic number.

20331003200 is a gapful number since it is divisible by the number (20) 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 20331003200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26397112560).

20331003200 is an abundant number, since it is smaller than the sum of its proper divisors (32463221920).

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

20331003200 is a wasteful number, since it uses less digits than its factorization.

20331003200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745 (or 1730 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20331003200 its reverse (230013302), we get a palindrome (20561016502).

The spelling of 20331003200 in words is "twenty billion, three hundred thirty-one million, three thousand, two hundred".