Base | Representation |
---|---|
bin | 1110111000011100… |
… | …01011001111000000 |
3 | 202121210222022222010 |
4 | 13130032023033000 |
5 | 112330323431343 |
6 | 3400450212520 |
7 | 401664040005 |
oct | 73416131700 |
9 | 22553868863 |
10 | 7989670848 |
11 | 342aa62a65 |
12 | 166b884140 |
13 | 9a43677b3 |
14 | 55b1798ac |
15 | 31b659d33 |
hex | 1dc38b3c0 |
7989670848 has 112 divisors (see below), whose sum is σ = 22402800000. Its totient is φ = 2505950208.
The previous prime is 7989670831. The next prime is 7989670849. The reversal of 7989670848 is 8480769897.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7989670849) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536203 + ... + 550901.
It is an arithmetic number, because the mean of its divisors is an integer number (200025000).
Almost surely, 27989670848 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 7989670848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11201400000).
7989670848 is an abundant number, since it is smaller than the sum of its proper divisors (14413129152).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7989670848 is a wasteful number, since it uses less digits than its factorization.
7989670848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14882 (or 14872 counting only the distinct ones).
The product of its (nonzero) digits is 48771072, while the sum is 66.
The square root of 7989670848 is about 89384.9587346775. The cubic root of 7989670848 is about 1999.1388666112.
The spelling of 7989670848 in words is "seven billion, nine hundred eighty-nine million, six hundred seventy thousand, eight hundred forty-eight".
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