Base | Representation |
---|---|
bin | 10110101011000… |
… | …100111010100110 |
3 | 222111202212110110 |
4 | 112223010322212 |
5 | 1234340003303 |
6 | 101425033450 |
7 | 12266161614 |
oct | 2653047246 |
9 | 874685413 |
10 | 380391078 |
11 | 1857a24a1 |
12 | a7485886 |
13 | 60a671a2 |
14 | 3873c6b4 |
15 | 235dd703 |
hex | 16ac4ea6 |
380391078 has 8 divisors (see below), whose sum is σ = 760782168. Its totient is φ = 126797024.
The previous prime is 380391013. The next prime is 380391157. The reversal of 380391078 is 870193083.
It is a sphenic number, since it is the product of 3 distinct primes.
380391078 is an admirable number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31699251 + ... + 31699262.
It is an arithmetic number, because the mean of its divisors is an integer number (95097771).
Almost surely, 2380391078 is an apocalyptic number.
380391078 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.
380391078 is a wasteful number, since it uses less digits than its factorization.
380391078 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 63398518.
The product of its (nonzero) digits is 36288, while the sum is 39.
The square root of 380391078 is about 19503.6170491527. The cubic root of 380391078 is about 724.5640362697.
The spelling of 380391078 in words is "three hundred eighty million, three hundred ninety-one thousand, seventy-eight".
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