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20300300 = 2252434721
BaseRepresentation
bin100110101110…
…0001000001100
31102012100202222
41031130020030
520144102200
62003034512
7334356356
oct115341014
942170688
1020300300
1110505a09
12696ba38
13428a017
1429a60d6
151baed85
hex135c20c

20300300 has 36 divisors (see below), whose sum is σ = 45085656. Its totient is φ = 7929600.

The previous prime is 20300299. The next prime is 20300317. The reversal of 20300300 is 300302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1940 + ... + 6660.

Almost surely, 220300300 is an apocalyptic number.

20300300 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 20300300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22542828).

20300300 is an abundant number, since it is smaller than the sum of its proper divisors (24785356).

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

20300300 is a wasteful number, since it uses less digits than its factorization.

20300300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4778 (or 4771 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 8.

The square root of 20300300 is about 4505.5854225616. The cubic root of 20300300 is about 272.7935842123.

Adding to 20300300 its reverse (300302), we get a palindrome (20600602).

The spelling of 20300300 in words is "twenty million, three hundred thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 43 50 86 100 172 215 430 860 1075 2150 4300 4721 9442 18884 23605 47210 94420 118025 203003 236050 406006 472100 812012 1015015 2030030 4060060 5075075 10150150 20300300