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20002000218 = 2328311779741
BaseRepresentation
bin10010101000001101…
…100100110101011010
31220121222021220000220
4102220031210311122
5311431003001333
613104440140510
71305445124304
oct225015446532
956558256026
1020002000218
1185346758a2
123a62767736
131b69c281b5
14d7a686974
157c10138b3
hex4a8364d5a

20002000218 has 16 divisors (see below), whose sum is σ = 40145360736. Its totient is φ = 6643773360.

The previous prime is 20002000217. The next prime is 20002000253. The reversal of 20002000218 is 81200020002.

It is a junction number, because it is equal to n+sod(n) for n = 20002000197 and 20002000206.

It is not an unprimeable number, because it can be changed into a prime (20002000217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5888173 + ... + 5891568.

It is an arithmetic number, because the mean of its divisors is an integer number (2509085046).

Almost surely, 220002000218 is an apocalyptic number.

20002000218 is an abundant number, since it is smaller than the sum of its proper divisors (20143360518).

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

20002000218 is a wasteful number, since it uses less digits than its factorization.

20002000218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11780029.

The product of its (nonzero) digits is 64, while the sum is 15.

The spelling of 20002000218 in words is "twenty billion, two million, two hundred eighteen", and thus it is an aban number.

Divisors: 1 2 3 6 283 566 849 1698 11779741 23559482 35339223 70678446 3333666703 6667333406 10001000109 20002000218