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144460105 = 533785733
BaseRepresentation
bin10001001110001…
…00100101001001
3101001211100000021
420213010211021
5243440210410
622200140441
73402614326
oct1047044511
9331740007
10144460105
11745a9019
1240467721
1323c0c46a
1415285b4d
15ca37eda
hex89c4949

144460105 has 8 divisors (see below), whose sum is σ = 173868552. Its totient is φ = 115223808.

The previous prime is 144460103. The next prime is 144460117. The reversal of 144460105 is 501064441.

It can be written as a sum of positive squares in 4 ways, for example, as 21427641 + 123032464 = 4629^2 + 11092^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 144460105 - 21 = 144460103 is a prime.

It is a super-2 number, since 2×1444601052 = 41737443873222050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144460105.

It is not an unprimeable number, because it can be changed into a prime (144460103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41182 + ... + 44551.

It is an arithmetic number, because the mean of its divisors is an integer number (21733569).

Almost surely, 2144460105 is an apocalyptic number.

It is an amenable number.

144460105 is a deficient number, since it is larger than the sum of its proper divisors (29408447).

144460105 is an equidigital number, since it uses as much as digits as its factorization.

144460105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86075.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 144460105 is about 12019.1557523813. The cubic root of 144460105 is about 524.7059335779.

The spelling of 144460105 in words is "one hundred forty-four million, four hundred sixty thousand, one hundred five".

Divisors: 1 5 337 1685 85733 428665 28892021 144460105