Base | Representation |
---|---|
bin | 10110101101010… |
… | …111010010110001 |
3 | 222112220022220111 |
4 | 112231113102301 |
5 | 1240013200031 |
6 | 101445541321 |
7 | 12304236613 |
oct | 2655272261 |
9 | 875808814 |
10 | 380990641 |
11 | 1860719a9 |
12 | a7714841 |
13 | 60c17065 |
14 | 38856db3 |
15 | 236ab1b1 |
hex | 16b574b1 |
380990641 has 8 divisors (see below), whose sum is σ = 402645600. Its totient is φ = 359496000.
The previous prime is 380990629. The next prime is 380990647. The reversal of 380990641 is 146099083.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 380990641 - 213 = 380982449 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 380990594 and 380990603.
It is not an unprimeable number, because it can be changed into a prime (380990647) 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, 35176 + ... + 44713.
It is an arithmetic number, because the mean of its divisors is an integer number (50330700).
Almost surely, 2380990641 is an apocalyptic number.
It is an amenable number.
380990641 is a deficient number, since it is larger than the sum of its proper divisors (21654959).
380990641 is a wasteful number, since it uses less digits than its factorization.
380990641 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 80159.
The product of its (nonzero) digits is 46656, while the sum is 40.
The square root of 380990641 is about 19518.9815564235. The cubic root of 380990641 is about 724.9445164040.
The spelling of 380990641 in words is "three hundred eighty million, nine hundred ninety thousand, six hundred forty-one".
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