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20302355030 = 258112503373
BaseRepresentation
bin10010111010000111…
…010101101001010110
31221101220110111101012
4102322013111221112
5313034400330110
613154325532222
71316053112306
oct227207255126
957356414335
1020302355030
118679171911
123b27274072
131bb721b639
14da850d606
157dc592905
hex4ba1d5a56

20302355030 has 16 divisors (see below), whose sum is σ = 36589314384. Its totient is φ = 8110925280.

The previous prime is 20302355027. The next prime is 20302355041. The reversal of 20302355030 is 3055320302.

It is a junction number, because it is equal to n+sod(n) for n = 20302354987 and 20302355005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1243577 + ... + 1259796.

It is an arithmetic number, because the mean of its divisors is an integer number (2286832149).

Almost surely, 220302355030 is an apocalyptic number.

20302355030 is a deficient number, since it is larger than the sum of its proper divisors (16286959354).

20302355030 is a wasteful number, since it uses less digits than its factorization.

20302355030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504191.

The product of its (nonzero) digits is 2700, while the sum is 23.

Adding to 20302355030 its reverse (3055320302), we get a palindrome (23357675332).

The spelling of 20302355030 in words is "twenty billion, three hundred two million, three hundred fifty-five thousand, thirty".

Divisors: 1 2 5 10 811 1622 4055 8110 2503373 5006746 12516865 25033730 2030235503 4060471006 10151177515 20302355030