Search a number
-
+
6433969 = 291491489
BaseRepresentation
bin11000100010110010110001
3110002212202011
4120202302301
53121341334
6345522521
7105454633
oct30426261
913085664
106433969
1136a4a33
1221a3441
1314436a9
14bd6a53
15871564
hex622cb1

6433969 has 8 divisors (see below), whose sum is σ = 6705000. Its totient is φ = 6166272.

The previous prime is 6433963. The next prime is 6433981. The reversal of 6433969 is 9693346.

6433969 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7744 + 6426225 = 88^2 + 2535^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6433969 - 25 = 6433937 is a prime.

It is a super-2 number, since 2×64339692 = 82791914185922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6433963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3577 + ... + 5065.

It is an arithmetic number, because the mean of its divisors is an integer number (838125).

Almost surely, 26433969 is an apocalyptic number.

It is an amenable number.

6433969 is a deficient number, since it is larger than the sum of its proper divisors (271031).

6433969 is a wasteful number, since it uses less digits than its factorization.

6433969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667.

The product of its digits is 104976, while the sum is 40.

The square root of 6433969 is about 2536.5269562928. The cubic root of 6433969 is about 185.9914533399.

The spelling of 6433969 in words is "six million, four hundred thirty-three thousand, nine hundred sixty-nine".

Divisors: 1 29 149 1489 4321 43181 221861 6433969