Base | Representation |
---|---|
bin | 11000010010111110… |
… | …11010000011100100 |
3 | 1020200001211110110200 |
4 | 30021133122003210 |
5 | 203203244130040 |
6 | 5554204550500 |
7 | 641150163405 |
oct | 141137320344 |
9 | 36601743420 |
10 | 13044130020 |
11 | 5594086a49 |
12 | 2640552430 |
13 | 12cb58333c |
14 | 8ba5759ac |
15 | 51526c630 |
hex | 3097da0e4 |
13044130020 has 72 divisors (see below), whose sum is σ = 39606960120. Its totient is φ = 3474938880.
The previous prime is 13044130013. The next prime is 13044130037. The reversal of 13044130020 is 2003144031.
13044130020 is a `hidden beast` number, since 1 + 304 + 41 + 300 + 20 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 362217024 + 12681912996 = 19032^2 + 112614^2 .
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 = 13044129975 and 13044130002.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145710 + ... + 217530.
Almost surely, 213044130020 is an apocalyptic number.
13044130020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13044130020 is an abundant number, since it is smaller than the sum of its proper divisors (26562830100).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13044130020 is a wasteful number, since it uses less digits than its factorization.
13044130020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 72845 (or 72840 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 13044130020 its reverse (2003144031), we get a palindrome (15047274051).
It can be divided in two parts, 130441 and 30020, that added together give a triangular number (160461 = T566).
The spelling of 13044130020 in words is "thirteen billion, forty-four million, one hundred thirty thousand, twenty".
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