Search a number
-
+
4782161 is a prime number
BaseRepresentation
bin10010001111100001010001
322222221220002
4102033201101
52211012121
6250255345
755435106
oct22174121
98887802
104782161
1127769aa
121727555
13cb58a7
148c6aad
15646e0b
hex48f851

4782161 has 2 divisors, whose sum is σ = 4782162. Its totient is φ = 4782160.

The previous prime is 4782143. The next prime is 4782179. The reversal of 4782161 is 1612874.

It is a balanced prime because it is at equal distance from previous prime (4782143) and next prime (4782179).

It can be written as a sum of positive squares in only one way, i.e., 4227136 + 555025 = 2056^2 + 745^2 .

It is a cyclic number.

It is not a de Polignac number, because 4782161 - 26 = 4782097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4782101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2391080 + 2391081.

It is an arithmetic number, because the mean of its divisors is an integer number (2391081).

Almost surely, 24782161 is an apocalyptic number.

It is an amenable number.

4782161 is a deficient number, since it is larger than the sum of its proper divisors (1).

4782161 is an equidigital number, since it uses as much as digits as its factorization.

4782161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 29.

The square root of 4782161 is about 2186.8152642599. The cubic root of 4782161 is about 168.4773014886.

The spelling of 4782161 in words is "four million, seven hundred eighty-two thousand, one hundred sixty-one".