Search a number
-
+
382115161 is a prime number
BaseRepresentation
bin10110110001101…
…001110101011001
3222122000110110101
4112301221311121
51240310141121
6101530015401
712316632241
oct2661516531
9878013411
10382115161
1118676a85a
12a7b77561
136121bb5c
1438a6ab21
152382e491
hex16c69d59

382115161 has 2 divisors, whose sum is σ = 382115162. Its totient is φ = 382115160.

The previous prime is 382115147. The next prime is 382115189. The reversal of 382115161 is 161511283.

It is an a-pointer prime, because the next prime (382115189) can be obtained adding 382115161 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377097561 + 5017600 = 19419^2 + 2240^2 .

It is an emirp because it is prime and its reverse (161511283) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 382115161 - 27 = 382115033 is a prime.

It is not a weakly prime, because it can be changed into another prime (382115131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191057580 + 191057581.

It is an arithmetic number, because the mean of its divisors is an integer number (191057581).

Almost surely, 2382115161 is an apocalyptic number.

It is an amenable number.

382115161 is a deficient number, since it is larger than the sum of its proper divisors (1).

382115161 is an equidigital number, since it uses as much as digits as its factorization.

382115161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 28.

The square root of 382115161 is about 19547.7661383596. The cubic root of 382115161 is about 725.6570569747.

The spelling of 382115161 in words is "three hundred eighty-two million, one hundred fifteen thousand, one hundred sixty-one".