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20311130300 = 22521012011003
BaseRepresentation
bin10010111010101000…
…110100000010111100
31221102111222022210012
4102322220310002330
5313044122132200
613155242002352
71316220521216
oct227250640274
957374868705
1020311130300
1186831158aa
123b2a1a63b8
131bb8ca18c6
14da97555b6
157dd227a35
hex4baa340bc

20311130300 has 36 divisors (see below), whose sum is σ = 44511562536. Its totient is φ = 8044008000.

The previous prime is 20311130299. The next prime is 20311130303. The reversal of 20311130300 is 303111302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20311130303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 995402 + ... + 1015601.

Almost surely, 220311130300 is an apocalyptic number.

20311130300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20311130300 is an abundant number, since it is smaller than the sum of its proper divisors (24200432236).

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

20311130300 is a wasteful number, since it uses less digits than its factorization.

20311130300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011118 (or 2011111 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 20311130300 its reverse (303111302), we get a palindrome (20614241602).

The spelling of 20311130300 in words is "twenty billion, three hundred eleven million, one hundred thirty thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 101 202 404 505 1010 2020 2525 5050 10100 2011003 4022006 8044012 10055015 20110030 40220060 50275075 100550150 201100300 203111303 406222606 812445212 1015556515 2031113030 4062226060 5077782575 10155565150 20311130300