Base | Representation |
---|---|
bin | 10010111010100101… |
… | …000000100110100000 |
3 | 1221102110002122221210 |
4 | 102322211000212200 |
5 | 313043343230102 |
6 | 13155204350120 |
7 | 1316206166121 |
oct | 227245004640 |
9 | 57373078853 |
10 | 20310133152 |
11 | 86825a4711 |
12 | 3b299a5340 |
13 | 1bb8a12a8a |
14 | da9576048 |
15 | 7dd0cc36c |
hex | 4ba9409a0 |
20310133152 has 48 divisors (see below), whose sum is σ = 53863754112. Its totient is φ = 6700247040.
The previous prime is 20310133099. The next prime is 20310133241. The reversal of 20310133152 is 25133101302.
It is a tau number, because it is divible by the number of its divisors (48).
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 7 ways as a sum of consecutive naturals, for example, 1081224 + ... + 1099847.
It is an arithmetic number, because the mean of its divisors is an integer number (1122161544).
Almost surely, 220310133152 is an apocalyptic number.
It is an amenable number.
20310133152 is an abundant number, since it is smaller than the sum of its proper divisors (33553620960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20310133152 is a wasteful number, since it uses less digits than its factorization.
20310133152 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2181181 (or 2181173 counting only the distinct ones).
The product of its (nonzero) digits is 540, while the sum is 21.
Adding to 20310133152 its reverse (25133101302), we get a palindrome (45443234454).
The spelling of 20310133152 in words is "twenty billion, three hundred ten million, one hundred thirty-three thousand, one hundred fifty-two".
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