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144441212104421 = 915115784199771
BaseRepresentation
bin100000110101111001010111…
…001000110110111011100101
3200221102110000102100102200222
4200311321113020312323211
5122413011100244320141
61231111213215414125
742265350613225151
oct4065712710667345
9627373012312628
10144441212104421
11420291a0727241
1214249811824345
13627999506b86b
142794dc5d5c061
1511a73a9ea414b
hex835e57236ee5

144441212104421 has 4 divisors (see below), whose sum is σ = 144456996313344. Its totient is φ = 144425427895500.

The previous prime is 144441212104361. The next prime is 144441212104459. The reversal of 144441212104421 is 124401212144441.

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 144441212104421 - 226 = 144441144995557 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 (144441212104481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7892090735 + ... + 7892109036.

It is an arithmetic number, because the mean of its divisors is an integer number (36114249078336).

Almost surely, 2144441212104421 is an apocalyptic number.

It is an amenable number.

144441212104421 is a deficient number, since it is larger than the sum of its proper divisors (15784208923).

144441212104421 is an equidigital number, since it uses as much as digits as its factorization.

144441212104421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15784208922.

The product of its (nonzero) digits is 32768, while the sum is 35.

Adding to 144441212104421 its reverse (124401212144441), we get a palindrome (268842424248862).

The spelling of 144441212104421 in words is "one hundred forty-four trillion, four hundred forty-one billion, two hundred twelve million, one hundred four thousand, four hundred twenty-one".

Divisors: 1 9151 15784199771 144441212104421