Base | Representation |
---|---|
bin | 1011010110010001110… |
… | …11111001010000110000 |
3 | 1101021110001212220120102 |
4 | 11223020323321100300 |
5 | 22342023024412010 |
6 | 455043112131532 |
7 | 40112352010445 |
oct | 5531073712060 |
9 | 1337401786512 |
10 | 389918200880 |
11 | 1403aa72850a |
12 | 6369a996ba8 |
13 | 2a9cca10930 |
14 | 14c2d2299cc |
15 | a22177dba5 |
hex | 5ac8ef9430 |
389918200880 has 160 divisors (see below), whose sum is σ = 1022835867648. Its totient is φ = 137245363200.
The previous prime is 389918200879. The next prime is 389918200901. The reversal of 389918200880 is 88002819983.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2069825 + ... + 2250335.
Almost surely, 2389918200880 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 389918200880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511417933824).
389918200880 is an abundant number, since it is smaller than the sum of its proper divisors (632917666768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
389918200880 is a wasteful number, since it uses less digits than its factorization.
389918200880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 180635 (or 180629 counting only the distinct ones).
The product of its (nonzero) digits is 1990656, while the sum is 56.
The spelling of 389918200880 in words is "three hundred eighty-nine billion, nine hundred eighteen million, two hundred thousand, eight hundred eighty".
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