Base | Representation |
---|---|
bin | 10110101101000… |
… | …011110000110001 |
3 | 222112202021011112 |
4 | 112231003300301 |
5 | 1240003120031 |
6 | 101444123105 |
7 | 12303454436 |
oct | 2655036061 |
9 | 875667145 |
10 | 380910641 |
11 | 186017891 |
12 | a7696495 |
13 | 60bb9817 |
14 | 38835b8d |
15 | 2369262b |
hex | 16b43c31 |
380910641 has 6 divisors (see below), whose sum is σ = 389976930. Its totient is φ = 372050448.
The previous prime is 380910571. The next prime is 380910643. The reversal of 380910641 is 146019083.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 291419041 + 89491600 = 17071^2 + 9460^2 .
It is a de Polignac number, because none of the positive numbers 2k-380910641 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 380910598 and 380910607.
It is not an unprimeable number, because it can be changed into a prime (380910643) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101156 + ... + 104853.
It is an arithmetic number, because the mean of its divisors is an integer number (64996155).
Almost surely, 2380910641 is an apocalyptic number.
It is an amenable number.
380910641 is a deficient number, since it is larger than the sum of its proper divisors (9066289).
380910641 is an equidigital number, since it uses as much as digits as its factorization.
380910641 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 206095 (or 206052 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 32.
The square root of 380910641 is about 19516.9321615873. The cubic root of 380910641 is about 724.8937718320.
The spelling of 380910641 in words is "three hundred eighty million, nine hundred ten thousand, six hundred forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.082 sec. • engine limits •