Base | Representation |
---|---|
bin | 10110101001101… |
… | …111010000000101 |
3 | 222111010001010212 |
4 | 112221233100011 |
5 | 1234242241242 |
6 | 101413325205 |
7 | 12263200625 |
oct | 2651572005 |
9 | 874101125 |
10 | 380040197 |
11 | 185582909 |
12 | a7336805 |
13 | 60973574 |
14 | 3868a885 |
15 | 2356e782 |
hex | 16a6f405 |
380040197 has 2 divisors, whose sum is σ = 380040198. Its totient is φ = 380040196.
The previous prime is 380040179. The next prime is 380040217. The reversal of 380040197 is 791040083.
Together with previous prime (380040179) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 214300321 + 165739876 = 14639^2 + 12874^2 .
It is a cyclic number.
It is not a de Polignac number, because 380040197 - 28 = 380039941 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (380040097) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190020098 + 190020099.
It is an arithmetic number, because the mean of its divisors is an integer number (190020099).
Almost surely, 2380040197 is an apocalyptic number.
It is an amenable number.
380040197 is a deficient number, since it is larger than the sum of its proper divisors (1).
380040197 is an equidigital number, since it uses as much as digits as its factorization.
380040197 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 6048, while the sum is 32.
The square root of 380040197 is about 19494.6196936488. The cubic root of 380040197 is about 724.3411831945.
The spelling of 380040197 in words is "three hundred eighty million, forty thousand, one hundred ninety-seven".
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