Base | Representation |
---|---|
bin | 10011000101111100… |
… | …111111000000011000 |
3 | 1221220202012001101200 |
4 | 103011330333000120 |
5 | 313441221424243 |
6 | 13230142514200 |
7 | 1324014230253 |
oct | 230574770030 |
9 | 57822161350 |
10 | 20500967448 |
11 | 8770297305 |
12 | 3b81895960 |
13 | 1c1940b190 |
14 | dc6a5009a |
15 | 7eec25ad3 |
hex | 4c5f3f018 |
20500967448 has 96 divisors (see below), whose sum is σ = 61856449200. Its totient is φ = 6090465024.
The previous prime is 20500967441. The next prime is 20500967503. The reversal of 20500967448 is 84476900502.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20500967441) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350490 + ... + 404777.
Almost surely, 220500967448 is an apocalyptic number.
It is an amenable number.
20500967448 is an abundant number, since it is smaller than the sum of its proper divisors (41355481752).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20500967448 is a wasteful number, since it uses less digits than its factorization.
20500967448 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 755321 (or 755314 counting only the distinct ones).
The product of its (nonzero) digits is 483840, while the sum is 45.
The spelling of 20500967448 in words is "twenty billion, five hundred million, nine hundred sixty-seven thousand, four hundred forty-eight".
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