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104444145 = 32513178537
BaseRepresentation
bin1100011100110…
…11000011110001
321021112022102200
412032123003301
5203214203040
614210333413
72405521611
oct616330361
9237468380
10104444145
1153a57483
122ab8a269
131883b590
14dc2aa41
159281630
hex639b0f1

104444145 has 24 divisors (see below), whose sum is σ = 194963496. Its totient is φ = 51418368.

The previous prime is 104444117. The next prime is 104444147. The reversal of 104444145 is 541444401.

It can be written as a sum of positive squares in 4 ways, for example, as 18455616 + 85988529 = 4296^2 + 9273^2 .

It is not a de Polignac number, because 104444145 - 211 = 104442097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104444147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88684 + ... + 89853.

It is an arithmetic number, because the mean of its divisors is an integer number (8123479).

Almost surely, 2104444145 is an apocalyptic number.

104444145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104444145 is a deficient number, since it is larger than the sum of its proper divisors (90519351).

104444145 is a wasteful number, since it uses less digits than its factorization.

104444145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178561 (or 178558 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 104444145 is about 10219.7918276255. The cubic root of 104444145 is about 470.9354313965.

Adding to 104444145 its reverse (541444401), we get a palindrome (645888546).

The spelling of 104444145 in words is "one hundred four million, four hundred forty-four thousand, one hundred forty-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 178537 535611 892685 1606833 2320981 2678055 6962943 8034165 11604905 20888829 34814715 104444145