Base | Representation |
---|---|
bin | 100101000100110… |
… | …0100111001101110 |
3 | 10012200211222200220 |
4 | 1022021210321232 |
5 | 10021432240210 |
6 | 323235432210 |
7 | 42554014245 |
oct | 11211447156 |
9 | 3180758626 |
10 | 1244024430 |
11 | 589245a70 |
12 | 2a8755666 |
13 | 16a969a3c |
14 | bb30d95c |
15 | 74334c70 |
hex | 4a264e6e |
1244024430 has 64 divisors (see below), whose sum is σ = 3428524800. Its totient is φ = 285707520.
The previous prime is 1244024429. The next prime is 1244024459. The reversal of 1244024430 is 344204421.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 1244024430.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92935 + ... + 105474.
It is an arithmetic number, because the mean of its divisors is an integer number (53570700).
Almost surely, 21244024430 is an apocalyptic number.
1244024430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1244024430 is an abundant number, since it is smaller than the sum of its proper divisors (2184500370).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1244024430 is a wasteful number, since it uses less digits than its factorization.
1244024430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 198449.
The product of its (nonzero) digits is 3072, while the sum is 24.
The square root of 1244024430 is about 35270.7304999485. The cubic root of 1244024430 is about 1075.4980724228.
Adding to 1244024430 its reverse (344204421), we get a palindrome (1588228851).
Subtracting from 1244024430 its reverse (344204421), we obtain a square (899820009 = 299972).
The spelling of 1244024430 in words is "one billion, two hundred forty-four million, twenty-four thousand, four hundred thirty".
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