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20213030300 = 22521989119533
BaseRepresentation
bin10010110100110010…
…100101110110011100
31221011200101022212212
4102310302211312130
5312344013432200
613141415215552
71313616631331
oct226462456634
957150338785
1020213030300
118632801921
123b013775b8
131ba1874b78
14d9a6da988
157d47eb035
hex4b4ca5d9c

20213030300 has 72 divisors (see below), whose sum is σ = 46689980400. Its totient is φ = 7573547520.

The previous prime is 20213030291. The next prime is 20213030309. The reversal of 20213030300 is 303031202.

It is an interprime number because it is at equal distance from previous prime (20213030291) and next prime (20213030309).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213030309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109334 + ... + 228866.

It is an arithmetic number, because the mean of its divisors is an integer number (648471950).

Almost surely, 220213030300 is an apocalyptic number.

20213030300 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 20213030300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23344990200).

20213030300 is an abundant number, since it is smaller than the sum of its proper divisors (26476950100).

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

20213030300 is a wasteful number, since it uses less digits than its factorization.

20213030300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119655 (or 119648 counting only the distinct ones).

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

Adding to 20213030300 its reverse (303031202), we get a palindrome (20516061502).

The spelling of 20213030300 in words is "twenty billion, two hundred thirteen million, thirty thousand, three hundred".

Divisors: 1 2 4 5 10 19 20 25 38 50 76 89 95 100 178 190 356 380 445 475 890 950 1691 1780 1900 2225 3382 4450 6764 8455 8900 16910 33820 42275 84550 119533 169100 239066 478132 597665 1195330 2271127 2390660 2988325 4542254 5976650 9084508 10638437 11355635 11953300 21276874 22711270 42553748 45422540 53192185 56778175 106384370 113556350 202130303 212768740 227112700 265960925 404260606 531921850 808521212 1010651515 1063843700 2021303030 4042606060 5053257575 10106515150 20213030300