Base | Representation |
---|---|
bin | 10010110000111101… |
… | …001001000111110100 |
3 | 1221000012022100221120 |
4 | 102300331021013310 |
5 | 312231030443343 |
6 | 13131200143540 |
7 | 1312206005466 |
oct | 226075110764 |
9 | 57005270846 |
10 | 20148687348 |
11 | 85aa455029 |
12 | 3aa3907bb0 |
13 | 1b9143720a |
14 | d91d4c136 |
15 | 7cdd3b683 |
hex | 4b0f491f4 |
20148687348 has 12 divisors (see below), whose sum is σ = 47013603840. Its totient is φ = 6716229112.
The previous prime is 20148687347. The next prime is 20148687353. The reversal of 20148687348 is 84378684102.
It is a tau number, because it is divible by the number of its divisors (12).
It is a self number, because there is not a number n which added to its sum of digits gives 20148687348.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20148687341) 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 3 ways as a sum of consecutive naturals, for example, 839528628 + ... + 839528651.
It is an arithmetic number, because the mean of its divisors is an integer number (3917800320).
Almost surely, 220148687348 is an apocalyptic number.
It is an amenable number.
20148687348 is an abundant number, since it is smaller than the sum of its proper divisors (26864916492).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20148687348 is a wasteful number, since it uses less digits than its factorization.
20148687348 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1679057286 (or 1679057284 counting only the distinct ones).
The product of its (nonzero) digits is 2064384, while the sum is 51.
The spelling of 20148687348 in words is "twenty billion, one hundred forty-eight million, six hundred eighty-seven thousand, three hundred forty-eight".
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