Base | Representation |
---|---|
bin | 1000011000011001100… |
… | …0010110000001101100 |
3 | 111202122210200002201220 |
4 | 2012012120112001230 |
5 | 4324342020340023 |
6 | 150051500103340 |
7 | 13255111424430 |
oct | 2060630260154 |
9 | 452583602656 |
10 | 143988449388 |
11 | 560797a9203 |
12 | 23aa5534b50 |
13 | 10768c9b114 |
14 | 6d7d2169c0 |
15 | 3b2ae643e3 |
hex | 218661606c |
143988449388 has 96 divisors (see below), whose sum is σ = 395248218624. Its totient is φ = 39947102208.
The previous prime is 143988449369. The next prime is 143988449389. The reversal of 143988449388 is 883944889341.
It is not an unprimeable number, because it can be changed into a prime (143988449389) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265131 + ... + 598557.
It is an arithmetic number, because the mean of its divisors is an integer number (4117168944).
Almost surely, 2143988449388 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 143988449388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197624109312).
143988449388 is an abundant number, since it is smaller than the sum of its proper divisors (251259769236).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
143988449388 is a wasteful number, since it uses less digits than its factorization.
143988449388 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 333591 (or 333589 counting only the distinct ones).
The product of its digits is 191102976, while the sum is 69.
The spelling of 143988449388 in words is "one hundred forty-three billion, nine hundred eighty-eight million, four hundred forty-nine thousand, three hundred eighty-eight".
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