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20000200018 = 217718285087
BaseRepresentation
bin10010101000000110…
…101101010101010010
31220121211220102121211
4102220012231111102
5311430022400033
613104333410334
71305423616021
oct225006552522
956554812554
1020000200018
118533656327
123a620399aa
131b697479a6
14d7a3388b8
157c0caa2cd
hex4a81ad552

20000200018 has 16 divisors (see below), whose sum is σ = 32212422144. Its totient is φ = 9279296320.

The previous prime is 20000199983. The next prime is 20000200021. The reversal of 20000200018 is 81000200002.

It is a junction number, because it is equal to n+sod(n) for n = 20000199980 and 20000200007.

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, 4140130 + ... + 4144957.

It is an arithmetic number, because the mean of its divisors is an integer number (2013276384).

Almost surely, 220000200018 is an apocalyptic number.

20000200018 is a deficient number, since it is larger than the sum of its proper divisors (12212222126).

20000200018 is a wasteful number, since it uses less digits than its factorization.

20000200018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8285177.

The product of its (nonzero) digits is 32, while the sum is 13.

The spelling of 20000200018 in words is "twenty billion, two hundred thousand, eighteen".

Divisors: 1 2 17 34 71 142 1207 2414 8285087 16570174 140846479 281692958 588241177 1176482354 10000100009 20000200018