Base | Representation |
---|---|
bin | 1001001111011011000010… |
… | …11000111011101000101100 |
3 | 2122221200101002022020022200 |
4 | 10213231201120323220230 |
5 | 10130420130243444202 |
6 | 111115221240141500 |
7 | 4165103254510131 |
oct | 447554130735054 |
9 | 78850332266280 |
10 | 20321124203052 |
11 | 652515a929792 |
12 | 2342453467890 |
13 | b4537369347a |
14 | 503794ac4588 |
15 | 2538ebd27e1c |
hex | 127b6163ba2c |
20321124203052 has 36 divisors (see below), whose sum is σ = 51367436656536. Its totient is φ = 6773688224640.
The previous prime is 20321124202963. The next prime is 20321124203053. The reversal of 20321124203052 is 25030242112302.
20321124203052 is a `hidden beast` number, since 2 + 0 + 321 + 12 + 4 + 20 + 305 + 2 = 666.
It is a tau number, because it is divible by the number of its divisors (36).
It is a super-2 number, since 2×203211242030522 (a number of 27 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (20321124203053) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16754052 + ... + 17925972.
Almost surely, 220321124203052 is an apocalyptic number.
It is an amenable number.
20321124203052 is an abundant number, since it is smaller than the sum of its proper divisors (31046312453484).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20321124203052 is a wasteful number, since it uses less digits than its factorization.
20321124203052 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1653598 (or 1653593 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 27.
Adding to 20321124203052 its reverse (25030242112302), we get a palindrome (45351366315354).
The spelling of 20321124203052 in words is "twenty trillion, three hundred twenty-one billion, one hundred twenty-four million, two hundred three thousand, fifty-two".
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