Base | Representation |
---|---|
bin | 1110111000011110… |
… | …01001010100000000 |
3 | 202121211110020202121 |
4 | 13130033021110000 |
5 | 112330410100440 |
6 | 3400455454024 |
7 | 401666146222 |
oct | 73417112400 |
9 | 22554406677 |
10 | 7989925120 |
11 | 3430117001 |
12 | 166b987314 |
13 | 9a4426458 |
14 | 55b204412 |
15 | 31b6aa34a |
hex | 1dc3c9500 |
7989925120 has 72 divisors (see below), whose sum is σ = 19755832320. Its totient is φ = 3092858880.
The previous prime is 7989925103. The next prime is 7989925243. The reversal of 7989925120 is 215299897.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61000 + ... + 140359.
It is an arithmetic number, because the mean of its divisors is an integer number (274386560).
Almost surely, 27989925120 is an apocalyptic number.
It is an amenable number.
7989925120 is an abundant number, since it is smaller than the sum of its proper divisors (11765907200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7989925120 is a wasteful number, since it uses less digits than its factorization.
7989925120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 201411 (or 201397 counting only the distinct ones).
The product of its (nonzero) digits is 816480, while the sum is 52.
The square root of 7989925120 is about 89386.3810655740. The cubic root of 7989925120 is about 1999.1600739782.
The spelling of 7989925120 in words is "seven billion, nine hundred eighty-nine million, nine hundred twenty-five thousand, one hundred twenty".
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