Base | Representation |
---|---|
bin | 1110100101000011… |
… | …10000001111001100 |
3 | 202012110221101000121 |
4 | 13102201300033030 |
5 | 112012204442423 |
6 | 3332400234324 |
7 | 364650444220 |
oct | 72241601714 |
9 | 22173841017 |
10 | 7827030988 |
11 | 3357178257 |
12 | 162530b9a4 |
13 | 9797615aa |
14 | 543720780 |
15 | 30c23045d |
hex | 1d28703cc |
7827030988 has 12 divisors (see below), whose sum is σ = 15654062032. Its totient is φ = 3354441840.
The previous prime is 7827030971. The next prime is 7827030989. The reversal of 7827030988 is 8890307287.
7827030988 is an admirable number.
It is a super-2 number, since 2×78270309882 (a number of 21 digits) contains 22 as substring.
It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.
It is not an unprimeable number, because it can be changed into a prime (7827030989) 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, 139768383 + ... + 139768438.
Almost surely, 27827030988 is an apocalyptic number.
It is an amenable number.
7827030988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7827030988 is a wasteful number, since it uses less digits than its factorization.
7827030988 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 279536832 (or 279536830 counting only the distinct ones).
The product of its (nonzero) digits is 1354752, while the sum is 52.
The square root of 7827030988 is about 88470.5091428777. The cubic root of 7827030988 is about 1985.4807666627.
The spelling of 7827030988 in words is "seven billion, eight hundred twenty-seven million, thirty thousand, nine hundred eighty-eight".
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