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20302113100 = 2252203021131
BaseRepresentation
bin10010111010000110…
…011010100101001100
31221101220000012111211
4102322012122211030
5313034320104400
613154320424204
71316051054053
oct227206324514
957356005454
1020302113100
118679017075
123b27178064
131bb7165499
14da848939a
157dc545dba
hex4ba19a94c

20302113100 has 18 divisors (see below), whose sum is σ = 44055585644. Its totient is φ = 8120845200.

The previous prime is 20302113089. The next prime is 20302113101. The reversal of 20302113100 is 131120302.

It is a super-3 number, since 3×203021131003 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (20302113101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101510466 + ... + 101510665.

Almost surely, 220302113100 is an apocalyptic number.

20302113100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302113100 is an abundant number, since it is smaller than the sum of its proper divisors (23753472544).

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

20302113100 is a wasteful number, since it uses less digits than its factorization.

20302113100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203021145 (or 203021138 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20302113100 its reverse (131120302), we get a palindrome (20433233402).

The spelling of 20302113100 in words is "twenty billion, three hundred two million, one hundred thirteen thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 203021131 406042262 812084524 1015105655 2030211310 4060422620 5075528275 10151056550 20302113100