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144831441 = 3187925693
BaseRepresentation
bin10001010000111…
…11001111010001
3101002112012101110
420220133033101
5244034101231
622212123533
73406022046
oct1050371721
9332465343
10144831441
1174832007
12406065a9
132400c4a1
14153411cd
15caad046
hex8a1f3d1

144831441 has 8 divisors (see below), whose sum is σ = 193218880. Its totient is φ = 96499152.

The previous prime is 144831419. The next prime is 144831469. The reversal of 144831441 is 144138441.

144831441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 144831441 - 26 = 144831377 is a prime.

It is a super-2 number, since 2×1448314412 = 41952292604272962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144831399 and 144831408.

It is not an unprimeable number, because it can be changed into a prime (144831641) 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, 7210 + ... + 18483.

It is an arithmetic number, because the mean of its divisors is an integer number (24152360).

Almost surely, 2144831441 is an apocalyptic number.

It is an amenable number.

144831441 is a deficient number, since it is larger than the sum of its proper divisors (48387439).

144831441 is a wasteful number, since it uses less digits than its factorization.

144831441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27575.

The product of its digits is 6144, while the sum is 30.

The square root of 144831441 is about 12034.5935120385. The cubic root of 144831441 is about 525.1551360126.

Adding to 144831441 its reverse (144138441), we get a palindrome (288969882).

The spelling of 144831441 in words is "one hundred forty-four million, eight hundred thirty-one thousand, four hundred forty-one".

Divisors: 1 3 1879 5637 25693 77079 48277147 144831441