Base | Representation |
---|---|
bin | 100100011110010010… |
… | …1000001010011110110 |
3 | 21111011122201022101000 |
4 | 1020330211001103312 |
5 | 2240402342431412 |
6 | 55552104344130 |
7 | 5441661611205 |
oct | 1107445012366 |
9 | 244148638330 |
10 | 78325748982 |
11 | 30243930558 |
12 | 1321b175046 |
13 | 7503302640 |
14 | 3b1067723c |
15 | 20865044dc |
hex | 123c9414f6 |
78325748982 has 32 divisors (see below), whose sum is σ = 187446238560. Its totient is φ = 24100230240.
The previous prime is 78325748971. The next prime is 78325748989. The reversal of 78325748982 is 28984752387.
78325748982 is a `hidden beast` number, since 78 + 3 + 2 + 5 + 7 + 489 + 82 = 666.
It is a super-2 number, since 2×783257489822 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78325748989) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55786869 + ... + 55788272.
It is an arithmetic number, because the mean of its divisors is an integer number (5857694955).
Almost surely, 278325748982 is an apocalyptic number.
78325748982 is an abundant number, since it is smaller than the sum of its proper divisors (109120489578).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78325748982 is a wasteful number, since it uses less digits than its factorization.
78325748982 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 111575165 (or 111575159 counting only the distinct ones).
The product of its digits is 54190080, while the sum is 63.
The spelling of 78325748982 in words is "seventy-eight billion, three hundred twenty-five million, seven hundred forty-eight thousand, nine hundred eighty-two".
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