Base | Representation |
---|---|
bin | 1001011001101… |
… | …00111101110100 |
3 | 12111101111210020 |
4 | 10230310331310 |
5 | 130142011043 |
6 | 11454125140 |
7 | 1645204653 |
oct | 454647564 |
9 | 174344706 |
10 | 78860148 |
11 | 40572884 |
12 | 224b07b0 |
13 | 13451613 |
14 | a68b19a |
15 | 6dcae83 |
hex | 4b34f74 |
78860148 has 24 divisors (see below), whose sum is σ = 186529728. Its totient is φ = 25926336.
The previous prime is 78860143. The next prime is 78860149. The reversal of 78860148 is 84106887.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78860143) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44136 + ... + 45887.
It is an arithmetic number, because the mean of its divisors is an integer number (7772072).
Almost surely, 278860148 is an apocalyptic number.
It is an amenable number.
78860148 is an abundant number, since it is smaller than the sum of its proper divisors (107669580).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78860148 is a wasteful number, since it uses less digits than its factorization.
78860148 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 90103 (or 90101 counting only the distinct ones).
The product of its (nonzero) digits is 86016, while the sum is 42.
The square root of 78860148 is about 8880.3236427509. The cubic root of 78860148 is about 428.8306937286.
The spelling of 78860148 in words is "seventy-eight million, eight hundred sixty thousand, one hundred forty-eight".
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