Search a number
-
+
20100310112200 = 23522947563130969
BaseRepresentation
bin1001001000111111101111…
…10110000001011111001000
32122011120102011122011212111
410210133313312001133020
510113310413342042300
6110425542135552104
74143125264634403
oct444376766013710
978146364564774
1020100310112200
11644a54805400a
1223076a922b634
13b2a5b3121c06
144d6c08564d3a
1524ccc642a9ba
hex1247f7d817c8

20100310112200 has 192 divisors, whose sum is σ = 49461396768000. Its totient is φ = 7584157808640.

The previous prime is 20100310112189. The next prime is 20100310112231. The reversal of 20100310112200 is 221101300102.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 153408316 + ... + 153539284.

It is an arithmetic number, because the mean of its divisors is an integer number (257611441500).

Almost surely, 220100310112200 is an apocalyptic number.

20100310112200 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 20100310112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24730698384000).

20100310112200 is an abundant number, since it is smaller than the sum of its proper divisors (29361086655800).

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

20100310112200 is a wasteful number, since it uses less digits than its factorization.

20100310112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131624 (or 131615 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20100310112200 its reverse (221101300102), we get a palindrome (20321411412302).

The spelling of 20100310112200 in words is "twenty trillion, one hundred billion, three hundred ten million, one hundred twelve thousand, two hundred".