Search a number
-
+
8402941 = 12376793
BaseRepresentation
bin100000000011…
…011111111101
3120210220200001
4200003133331
54122343231
6500034301
7131265241
oct40033775
916726601
108402941
11481a288
122992991
131982971
14118a421
15b0eb61
hex8037fd

8402941 has 4 divisors (see below), whose sum is σ = 8410972. Its totient is φ = 8394912.

The previous prime is 8402917. The next prime is 8402951. The reversal of 8402941 is 1492048.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3407716 + 4995225 = 1846^2 + 2235^2 .

It is a cyclic number.

It is not a de Polignac number, because 8402941 - 219 = 7878653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8402951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2160 + ... + 4633.

It is an arithmetic number, because the mean of its divisors is an integer number (2102743).

Almost surely, 28402941 is an apocalyptic number.

It is an amenable number.

8402941 is a deficient number, since it is larger than the sum of its proper divisors (8031).

8402941 is a wasteful number, since it uses less digits than its factorization.

8402941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8030.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 8402941 is about 2898.7826755381. The cubic root of 8402941 is about 203.3029925764.

Adding to 8402941 its reverse (1492048), we get a palindrome (9894989).

The spelling of 8402941 in words is "eight million, four hundred two thousand, nine hundred forty-one".

Divisors: 1 1237 6793 8402941