Base | Representation |
---|---|
bin | 101011001010011… |
… | …001000110011110 |
3 | 1212110121100120020 |
4 | 223022121012132 |
5 | 2440340111132 |
6 | 155504533010 |
7 | 23642061402 |
oct | 5312310636 |
9 | 1773540506 |
10 | 724144542 |
11 | 341840570 |
12 | 182621166 |
13 | b70440c4 |
14 | 6c261102 |
15 | 4389152c |
hex | 2b29919e |
724144542 has 96 divisors (see below), whose sum is σ = 1661357952. Its totient is φ = 208608000.
The previous prime is 724144541. The next prime is 724144571. The reversal of 724144542 is 245441427.
724144542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (724144541) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6767653 + ... + 6767759.
It is an arithmetic number, because the mean of its divisors is an integer number (17305812).
Almost surely, 2724144542 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 724144542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (830678976).
724144542 is an abundant number, since it is smaller than the sum of its proper divisors (937213410).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
724144542 is a wasteful number, since it uses less digits than its factorization.
724144542 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 266 (or 225 counting only the distinct ones).
The product of its digits is 35840, while the sum is 33.
The square root of 724144542 is about 26909.9338906657. The cubic root of 724144542 is about 897.9974165067.
Adding to 724144542 its reverse (245441427), we get a palindrome (969585969).
The spelling of 724144542 in words is "seven hundred twenty-four million, one hundred forty-four thousand, five hundred forty-two".
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