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244231451540 = 22512211572577
BaseRepresentation
bin1110001101110101010…
…1000011001110010100
3212100101220120020021022
43203131111003032110
513000141222422130
6304110503340312
723434166041136
oct3433525031624
9770356506238
10244231451540
119463a31842a
123b400751698
131a052c3cccb
14bb6c651056
15654669e7e5
hex38dd543394

244231451540 has 12 divisors (see below), whose sum is σ = 512886048276. Its totient is φ = 97692580608.

The previous prime is 244231451533. The next prime is 244231451567. The reversal of 244231451540 is 45154132442.

It is a happy number.

244231451540 is digitally balanced in base 2, 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 2 ways, for example, as 167578884496 + 76652567044 = 409364^2 + 276862^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 244231451540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6105786269 + ... + 6105786308.

It is an arithmetic number, because the mean of its divisors is an integer number (42740504023).

Almost surely, 2244231451540 is an apocalyptic number.

244231451540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244231451540 is an abundant number, since it is smaller than the sum of its proper divisors (268654596736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

244231451540 is a wasteful number, since it uses less digits than its factorization.

244231451540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12211572586 (or 12211572584 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 244231451540 its reverse (45154132442), we get a palindrome (289385583982).

The spelling of 244231451540 in words is "two hundred forty-four billion, two hundred thirty-one million, four hundred fifty-one thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 12211572577 24423145154 48846290308 61057862885 122115725770 244231451540