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20300031022 = 279349368141
BaseRepresentation
bin10010111001111110…
…011110010000101110
31221101202002102102211
4102321332132100232
5313033301443042
613154204041034
71316024262625
oct227176362056
957352072384
1020300031022
118677924847
123b2653317a
131bb68b689b
14da80a66bc
157dc284017
hex4b9f9e42e

20300031022 has 16 divisors (see below), whose sum is σ = 30923928000. Its totient is φ = 9992792160.

The previous prime is 20300030999. The next prime is 20300031043. The reversal of 20300031022 is 22013000302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20300030993 and 20300031011.

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, 128929 + ... + 239212.

It is an arithmetic number, because the mean of its divisors is an integer number (1932745500).

Almost surely, 220300031022 is an apocalyptic number.

20300031022 is a deficient number, since it is larger than the sum of its proper divisors (10623896978).

20300031022 is a wasteful number, since it uses less digits than its factorization.

20300031022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368571.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20300031022 its reverse (22013000302), we get a palindrome (42313031324).

The spelling of 20300031022 in words is "twenty billion, three hundred million, thirty-one thousand, twenty-two".

Divisors: 1 2 79 158 349 698 27571 55142 368141 736282 29083139 58166278 128481209 256962418 10150015511 20300031022