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104442553 = 611712173
BaseRepresentation
bin1100011100110…
…10101010111001
321021112020020201
412032122222321
5203214130203
614210322201
72405514145
oct616325271
9237466221
10104442553
1153a56266
122ab89361
131883a937
14dc2a225
159280e1d
hex639aab9

104442553 has 4 divisors (see below), whose sum is σ = 106154788. Its totient is φ = 102730320.

The previous prime is 104442497. The next prime is 104442581. The reversal of 104442553 is 355244401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 355244401 = 427383137.

It can be written as a sum of positive squares in 2 ways, for example, as 4981824 + 99460729 = 2232^2 + 9973^2 .

It is a cyclic number.

It is not a de Polignac number, because 104442553 - 213 = 104434361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104442053) 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, 856026 + ... + 856147.

It is an arithmetic number, because the mean of its divisors is an integer number (26538697).

Almost surely, 2104442553 is an apocalyptic number.

It is an amenable number.

104442553 is a deficient number, since it is larger than the sum of its proper divisors (1712235).

104442553 is an equidigital number, since it uses as much as digits as its factorization.

104442553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712234.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 104442553 is about 10219.7139392451. The cubic root of 104442553 is about 470.9330386247.

Adding to 104442553 its reverse (355244401), we get a palindrome (459686954).

The spelling of 104442553 in words is "one hundred four million, four hundred forty-two thousand, five hundred fifty-three".

Divisors: 1 61 1712173 104442553