Base | Representation |
---|---|
bin | 10010101011010001… |
… | …000110000010101000 |
3 | 1220202112201212102200 |
4 | 102223101012002220 |
5 | 312032113114222 |
6 | 13113510500200 |
7 | 1306636564200 |
oct | 225321060250 |
9 | 56675655380 |
10 | 20053254312 |
11 | 85605a2853 |
12 | 3a77964660 |
13 | 1b77732370 |
14 | d833c9400 |
15 | 7c5789eac |
hex | 4ab4460a8 |
20053254312 has 288 divisors, whose sum is σ = 70388627400. Its totient is φ = 5106060288.
The previous prime is 20053254307. The next prime is 20053254343. The reversal of 20053254312 is 21345235002.
It is a happy number.
20053254312 is a `hidden beast` number, since 20 + 0 + 5 + 325 + 4 + 312 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 8101080036 + 11952174276 = 90006^2 + 109326^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1322518 + ... + 1337594.
Almost surely, 220053254312 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 20053254312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35194313700).
20053254312 is an abundant number, since it is smaller than the sum of its proper divisors (50335373088).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20053254312 is a wasteful number, since it uses less digits than its factorization.
20053254312 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15145 (or 15131 counting only the distinct ones).
The product of its (nonzero) digits is 7200, while the sum is 27.
Adding to 20053254312 its reverse (21345235002), we get a palindrome (41398489314).
The spelling of 20053254312 in words is "twenty billion, fifty-three million, two hundred fifty-four thousand, three hundred twelve".
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