Search a number
-
+
724114421 = 1315527591
BaseRepresentation
bin101011001010010…
…001101111110101
31212110112211020122
4223022101233311
52440333130141
6155504141325
723641604522
oct5312215765
91773484218
10724114421
1134181a978
12182607845
13b7033494
146c254149
154388764b
hex2b291bf5

724114421 has 4 divisors (see below), whose sum is σ = 729642144. Its totient is φ = 718586700.

The previous prime is 724114387. The next prime is 724114429. The reversal of 724114421 is 124411427.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 724114421 - 26 = 724114357 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 (724114429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2763665 + ... + 2763926.

It is an arithmetic number, because the mean of its divisors is an integer number (182410536).

Almost surely, 2724114421 is an apocalyptic number.

It is an amenable number.

724114421 is a deficient number, since it is larger than the sum of its proper divisors (5527723).

724114421 is a wasteful number, since it uses less digits than its factorization.

724114421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5527722.

The product of its digits is 1792, while the sum is 26.

The square root of 724114421 is about 26909.3742216351. The cubic root of 724114421 is about 897.9849655140.

Adding to 724114421 its reverse (124411427), we get a palindrome (848525848).

The spelling of 724114421 in words is "seven hundred twenty-four million, one hundred fourteen thousand, four hundred twenty-one".

Divisors: 1 131 5527591 724114421