Search a number
-
+
6491941 = 19333637
BaseRepresentation
bin11000110000111100100101
3110012211021021
4120300330211
53130220231
6351051141
7106115641
oct30607445
913184237
106491941
113734545
122210ab1
131463bb1
14c0dc21
15883811
hex630f25

6491941 has 4 divisors (see below), whose sum is σ = 6525772. Its totient is φ = 6458112.

The previous prime is 6491929. The next prime is 6491951. The reversal of 6491941 is 1491946.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1491946 = 2745973.

It can be written as a sum of positive squares in 2 ways, for example, as 950625 + 5541316 = 975^2 + 2354^2 .

It is a cyclic number.

It is not a de Polignac number, because 6491941 - 27 = 6491813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6491897 and 6491906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6491951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16626 + ... + 17011.

It is an arithmetic number, because the mean of its divisors is an integer number (1631443).

Almost surely, 26491941 is an apocalyptic number.

It is an amenable number.

6491941 is a deficient number, since it is larger than the sum of its proper divisors (33831).

6491941 is a wasteful number, since it uses less digits than its factorization.

6491941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33830.

The product of its digits is 7776, while the sum is 34.

The square root of 6491941 is about 2547.9287666652. The cubic root of 6491941 is about 186.5483969495.

The spelling of 6491941 in words is "six million, four hundred ninety-one thousand, nine hundred forty-one".

Divisors: 1 193 33637 6491941