Base | Representation |
---|---|
bin | 100100010110101000… |
… | …1001001111000000000 |
3 | 21110111202101011102001 |
4 | 1020231101021320000 |
5 | 2234341113223234 |
6 | 55510411033344 |
7 | 5432422361503 |
oct | 1105521117000 |
9 | 243452334361 |
10 | 78068882944 |
11 | 30121938278 |
12 | 1316913b854 |
13 | 74920279c0 |
14 | 3ac84d113a |
15 | 206dbb5d14 |
hex | 122d449e00 |
78068882944 has 160 divisors (see below), whose sum is σ = 187232078880. Its totient is φ = 32126533632.
The previous prime is 78068882939. The next prime is 78068882951. The reversal of 78068882944 is 44928886087.
It is a Harshad number since it is a multiple of its sum of digits (64).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2131732 + ... + 2168044.
It is an arithmetic number, because the mean of its divisors is an integer number (1170200493).
Almost surely, 278068882944 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 78068882944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93616039440).
78068882944 is an abundant number, since it is smaller than the sum of its proper divisors (109163195936).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78068882944 is a wasteful number, since it uses less digits than its factorization.
78068882944 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 36380 (or 36364 counting only the distinct ones).
The product of its (nonzero) digits is 49545216, while the sum is 64.
The spelling of 78068882944 in words is "seventy-eight billion, sixty-eight million, eight hundred eighty-two thousand, nine hundred forty-four".
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