Base | Representation |
---|---|
bin | 10110101100110… |
… | …000100011011000 |
3 | 222112121021020102 |
4 | 112230300203120 |
5 | 1234443110320 |
6 | 101442314532 |
7 | 12303006155 |
oct | 2654604330 |
9 | 875537212 |
10 | 380831960 |
11 | 185a73763 |
12 | a7658a48 |
13 | 60b8ca72 |
14 | 3881522c |
15 | 23679175 |
hex | 16b308d8 |
380831960 has 32 divisors (see below), whose sum is σ = 907277760. Its totient is φ = 143371776.
The previous prime is 380831959. The next prime is 380831981. The reversal of 380831960 is 69138083.
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 7 ways as a sum of consecutive naturals, for example, 279344 + ... + 280703.
It is an arithmetic number, because the mean of its divisors is an integer number (28352430).
Almost surely, 2380831960 is an apocalyptic number.
It is an amenable number.
380831960 is an abundant number, since it is smaller than the sum of its proper divisors (526445800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
380831960 is a wasteful number, since it uses less digits than its factorization.
380831960 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 560075 (or 560071 counting only the distinct ones).
The product of its (nonzero) digits is 31104, while the sum is 38.
The square root of 380831960 is about 19514.9163462209. The cubic root of 380831960 is about 724.8438569804.
The spelling of 380831960 in words is "three hundred eighty million, eight hundred thirty-one thousand, nine hundred sixty".
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