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104145313 = 443235091
BaseRepresentation
bin1100011010100…
…10000110100001
321020222010111211
412031102012201
5203130122223
614200110121
72403135436
oct615220641
9236863454
10104145313
1153872a08
122aa65341
131876555c
14db8db8d
159222d0d
hex63521a1

104145313 has 4 divisors (see below), whose sum is σ = 104380848. Its totient is φ = 103909780.

The previous prime is 104145259. The next prime is 104145317. The reversal of 104145313 is 313541401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313541401 = 1916502179.

It is a cyclic number.

It is not a de Polignac number, because 104145313 - 29 = 104144801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104145317) 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 3 ways as a sum of consecutive naturals, for example, 117103 + ... + 117988.

It is an arithmetic number, because the mean of its divisors is an integer number (26095212).

Almost surely, 2104145313 is an apocalyptic number.

It is an amenable number.

104145313 is a deficient number, since it is larger than the sum of its proper divisors (235535).

104145313 is an equidigital number, since it uses as much as digits as its factorization.

104145313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235534.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 104145313 is about 10205.1610962297. The cubic root of 104145313 is about 470.4858609318.

Adding to 104145313 its reverse (313541401), we get a palindrome (417686714).

The spelling of 104145313 in words is "one hundred four million, one hundred forty-five thousand, three hundred thirteen".

Divisors: 1 443 235091 104145313