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104038565 = 520807713
BaseRepresentation
bin1100011001110…
…00000010100101
321020202201002012
412030320002211
5203113213230
614153524005
72402212301
oct614700245
9236681065
10104038565
11537aa794
122aa13605
1318728aa7
14db62d01
159201395
hex63380a5

104038565 has 4 divisors (see below), whose sum is σ = 124846284. Its totient is φ = 83230848.

The previous prime is 104038553. The next prime is 104038577. The reversal of 104038565 is 565830401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 565830401 = 997567533.

It is an interprime number because it is at equal distance from previous prime (104038553) and next prime (104038577).

It can be written as a sum of positive squares in 2 ways, for example, as 10452289 + 93586276 = 3233^2 + 9674^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-104038565 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10403852 + ... + 10403861.

It is an arithmetic number, because the mean of its divisors is an integer number (31211571).

Almost surely, 2104038565 is an apocalyptic number.

It is an amenable number.

104038565 is a deficient number, since it is larger than the sum of its proper divisors (20807719).

104038565 is an equidigital number, since it uses as much as digits as its factorization.

104038565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20807718.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 104038565 is about 10199.9296566202. The cubic root of 104038565 is about 470.3250580673.

Adding to 104038565 its reverse (565830401), we get a palindrome (669868966).

The spelling of 104038565 in words is "one hundred four million, thirty-eight thousand, five hundred sixty-five".

Divisors: 1 5 20807713 104038565