Base | Representation |
---|---|
bin | 10110101100000… |
… | …011001000101010 |
3 | 222112020211001102 |
4 | 112230003020222 |
5 | 1234421132210 |
6 | 101434321402 |
7 | 12301302620 |
oct | 2654031052 |
9 | 875224042 |
10 | 380645930 |
11 | 185956a15 |
12 | a7589262 |
13 | 60b261a2 |
14 | 387a7510 |
15 | 2363dea5 |
hex | 16b0322a |
380645930 has 16 divisors (see below), whose sum is σ = 783043200. Its totient is φ = 130507152.
The previous prime is 380645911. The next prime is 380645959. The reversal of 380645930 is 39546083.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2718830 + ... + 2718969.
It is an arithmetic number, because the mean of its divisors is an integer number (48940200).
Almost surely, 2380645930 is an apocalyptic number.
380645930 is an abundant number, since it is smaller than the sum of its proper divisors (402397270).
380645930 is a wasteful number, since it uses less digits than its factorization.
380645930 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5437813.
The product of its (nonzero) digits is 77760, while the sum is 38.
The square root of 380645930 is about 19510.1494099866. The cubic root of 380645930 is about 724.7258130844.
The spelling of 380645930 in words is "three hundred eighty million, six hundred forty-five thousand, nine hundred thirty".
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