Search a number
-
+
8381941 is a prime number
BaseRepresentation
bin11111111110010111110101
3120202211212021
4133332113311
54121210231
6455353141
7131150101
oct37762765
916684767
108381941
114805527
1229827b1
131976239
141182901
15b08811
hex7fe5f5

8381941 has 2 divisors, whose sum is σ = 8381942. Its totient is φ = 8381940.

The previous prime is 8381927. The next prime is 8381951. The reversal of 8381941 is 1491838.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7001316 + 1380625 = 2646^2 + 1175^2 .

It is a cyclic number.

It is not a de Polignac number, because 8381941 - 25 = 8381909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8381897 and 8381906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8381951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4190970 + 4190971.

It is an arithmetic number, because the mean of its divisors is an integer number (4190971).

Almost surely, 28381941 is an apocalyptic number.

It is an amenable number.

8381941 is a deficient number, since it is larger than the sum of its proper divisors (1).

8381941 is an equidigital number, since it uses as much as digits as its factorization.

8381941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 34.

The square root of 8381941 is about 2895.1581994772. The cubic root of 8381941 is about 203.1334914320.

The spelling of 8381941 in words is "eight million, three hundred eighty-one thousand, nine hundred forty-one".