Base | Representation |
---|---|
bin | 1001000110011101100000… |
… | …10010010101110101100000 |
3 | 2121212020121000211201121200 |
4 | 10203032300102111311200 |
5 | 10110344023304330422 |
6 | 110321535235121200 |
7 | 4133623002102201 |
oct | 443166022256540 |
9 | 77766530751550 |
10 | 20013210230112 |
11 | 6416611482490 |
12 | 22b283b743200 |
13 | b223120b2248 |
14 | 4d29048ad5a8 |
15 | 24a8c99b32ac |
hex | 1233b0495d60 |
20013210230112 has 144 divisors (see below), whose sum is σ = 62092348718400. Its totient is φ = 6064031635200.
The previous prime is 20013210230071. The next prime is 20013210230113. The reversal of 20013210230112 is 21103201231002.
20013210230112 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 321 + 0 + 230 + 112 = 666.
It is a tau number, because it is divible by the number of its divisors (144).
It is a super-4 number, since 4×200132102301124 (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20013210230113) by changing a digit.
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 23 ways as a sum of consecutive naturals, for example, 33573639 + ... + 34164537.
It is an arithmetic number, because the mean of its divisors is an integer number (431196866100).
Almost surely, 220013210230112 is an apocalyptic number.
20013210230112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
20013210230112 is an abundant number, since it is smaller than the sum of its proper divisors (42079138488288).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20013210230112 is a wasteful number, since it uses less digits than its factorization.
20013210230112 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 601617 (or 601606 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 20013210230112 its reverse (21103201231002), we get a palindrome (41116411461114).
The spelling of 20013210230112 in words is "twenty trillion, thirteen billion, two hundred ten million, two hundred thirty thousand, one hundred twelve".
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