Base | Representation |
---|---|
bin | 11000110101001111… |
… | …01000101111110100 |
3 | 1021102002120101000000 |
4 | 30122213220233310 |
5 | 204300331000040 |
6 | 10042512151300 |
7 | 651236610666 |
oct | 143247505764 |
9 | 37362511000 |
10 | 13331500020 |
11 | 5721314313 |
12 | 2700838530 |
13 | 1345c7b467 |
14 | 9067bc536 |
15 | 5305d4130 |
hex | 31a9e8bf4 |
13331500020 has 84 divisors (see below), whose sum is σ = 41975069220. Its totient is φ = 3555062784.
The previous prime is 13331500001. The next prime is 13331500031. The reversal of 13331500020 is 2000513331.
13331500020 is a `hidden beast` number, since 133 + 31 + 500 + 0 + 2 + 0 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 3651301476 + 9680198544 = 60426^2 + 98388^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 13331499966 and 13331500002.
It is a congruent number.
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 27 ways as a sum of consecutive naturals, for example, 442605 + ... + 471764.
It is an arithmetic number, because the mean of its divisors is an integer number (499703205).
Almost surely, 213331500020 is an apocalyptic number.
13331500020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13331500020 is an abundant number, since it is smaller than the sum of its proper divisors (28643569200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13331500020 is an equidigital number, since it uses as much as digits as its factorization.
13331500020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 914396 (or 914379 counting only the distinct ones).
The product of its (nonzero) digits is 270, while the sum is 18.
The spelling of 13331500020 in words is "thirteen billion, three hundred thirty-one million, five hundred thousand, twenty".
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