Base | Representation |
---|---|
bin | 10110101100100… |
… | …110001010000100 |
3 | 222112112002211101 |
4 | 112230212022010 |
5 | 1234440230010 |
6 | 101441345444 |
7 | 12302441056 |
oct | 2654461204 |
9 | 875462741 |
10 | 380789380 |
11 | 185a44774 |
12 | a7638284 |
13 | 60b7657a |
14 | 388038d6 |
15 | 2366b73a |
hex | 16b26284 |
380789380 has 24 divisors (see below), whose sum is σ = 834426432. Its totient is φ = 145693152.
The previous prime is 380789371. The next prime is 380789483. The reversal of 380789380 is 83987083.
It is a Harshad number since it is a multiple of its sum of digits (46).
It is a self number, because there is not a number n which added to its sum of digits gives 380789380.
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, 413442 + ... + 414361.
It is an arithmetic number, because the mean of its divisors is an integer number (34767768).
Almost surely, 2380789380 is an apocalyptic number.
It is an amenable number.
380789380 is an abundant number, since it is smaller than the sum of its proper divisors (453637052).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
380789380 is a wasteful number, since it uses less digits than its factorization.
380789380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 827835 (or 827833 counting only the distinct ones).
The product of its (nonzero) digits is 290304, while the sum is 46.
The square root of 380789380 is about 19513.8253553730. The cubic root of 380789380 is about 724.8168415641.
The spelling of 380789380 in words is "three hundred eighty million, seven hundred eighty-nine thousand, three hundred eighty".
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