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20302130030 = 2571322310033
BaseRepresentation
bin10010111010000110…
…011110101101101110
31221101220001001201212
4102322012132231232
5313034321130110
613154321034422
71316051154320
oct227206365556
957356031655
1020302130030
118679028866
123b27185a12
131bb71700c0
14da8491610
157dc54ae05
hex4ba19eb6e

20302130030 has 32 divisors (see below), whose sum is σ = 44977028544. Its totient is φ = 6425289216.

The previous prime is 20302129999. The next prime is 20302130081. The reversal of 20302130030 is 3003120302.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 20302129987 and 20302130014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11154107 + ... + 11155926.

It is an arithmetic number, because the mean of its divisors is an integer number (1405532142).

Almost surely, 220302130030 is an apocalyptic number.

20302130030 is an abundant number, since it is smaller than the sum of its proper divisors (24674898514).

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

20302130030 is a wasteful number, since it uses less digits than its factorization.

20302130030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22310060.

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

Adding to 20302130030 its reverse (3003120302), we get a palindrome (23305250332).

The spelling of 20302130030 in words is "twenty billion, three hundred two million, one hundred thirty thousand, thirty".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 455 910 22310033 44620066 111550165 156170231 223100330 290030429 312340462 580060858 780851155 1450152145 1561702310 2030213003 2900304290 4060426006 10151065015 20302130030