Base | Representation |
---|---|
bin | 1110111000010000… |
… | …00000111110110100 |
3 | 202121200221021210111 |
4 | 13130020000332310 |
5 | 112324420242423 |
6 | 3400351432404 |
7 | 401644232653 |
oct | 73410007664 |
9 | 22550837714 |
10 | 7988055988 |
11 | 342a05a770 |
12 | 166b225704 |
13 | 9a3c20763 |
14 | 55ac7919a |
15 | 31b43b60d |
hex | 1dc200fb4 |
7988055988 has 12 divisors (see below), whose sum is σ = 15249925152. Its totient is φ = 3630934520.
The previous prime is 7988055937. The next prime is 7988055989. The reversal of 7988055988 is 8895508897.
It is a super-2 number, since 2×79880559882 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7988055989) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90773320 + ... + 90773407.
It is an arithmetic number, because the mean of its divisors is an integer number (1270827096).
Almost surely, 27988055988 is an apocalyptic number.
It is an amenable number.
7988055988 is a deficient number, since it is larger than the sum of its proper divisors (7261869164).
7988055988 is a wasteful number, since it uses less digits than its factorization.
7988055988 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 181546742 (or 181546740 counting only the distinct ones).
The product of its (nonzero) digits is 58060800, while the sum is 67.
The square root of 7988055988 is about 89375.9251029045. The cubic root of 7988055988 is about 1999.0041699102.
The spelling of 7988055988 in words is "seven billion, nine hundred eighty-eight million, fifty-five thousand, nine hundred eighty-eight".
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