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144868441 = 17101139607
BaseRepresentation
bin10001010001010…
…00010001011001
3101002121002010211
420220220101121
5244041242231
622213011121
73406234654
oct1050502131
9332532124
10144868441
1174857893
1240623aa1
1324023293
141535089b
15cab8eb1
hex8a28459

144868441 has 16 divisors (see below), whose sum is σ = 156280320. Its totient is φ = 133804800.

The previous prime is 144868417. The next prime is 144868517.

It is a happy number.

144868441 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 144868441 - 225 = 111314009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144868394 and 144868403.

It is not an unprimeable number, because it can be changed into a prime (144863441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238360 + ... + 238966.

It is an arithmetic number, because the mean of its divisors is an integer number (9767520).

Almost surely, 2144868441 is an apocalyptic number.

It is an amenable number.

144868441 is a deficient number, since it is larger than the sum of its proper divisors (11411879).

144868441 is a wasteful number, since it uses less digits than its factorization.

144868441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864.

The product of its digits is 98304, while the sum is 40.

The square root of 144868441 is about 12036.1306490084. The cubic root of 144868441 is about 525.1998525592.

The spelling of 144868441 in words is "one hundred forty-four million, eight hundred sixty-eight thousand, four hundred forty-one".

Divisors: 1 17 101 139 607 1717 2363 10319 14039 61307 84373 238663 1042219 1434341 8521673 144868441