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104312111 = 459122721
BaseRepresentation
bin1100011011110…
…10110100101111
321021021121022112
412031322310233
5203200441421
614203434235
72404431641
oct615726457
9237247275
10104312111
1153977262
122ab2597b
13187c3457
14dbd4891
15925745b
hex637ad2f

104312111 has 4 divisors (see below), whose sum is σ = 104339424. Its totient is φ = 104284800.

The previous prime is 104312083. The next prime is 104312113. The reversal of 104312111 is 111213401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111213401 = 138554877.

It is a cyclic number.

It is not a de Polignac number, because 104312111 - 226 = 37203247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104312113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6770 + ... + 15951.

It is an arithmetic number, because the mean of its divisors is an integer number (26084856).

Almost surely, 2104312111 is an apocalyptic number.

104312111 is a deficient number, since it is larger than the sum of its proper divisors (27313).

104312111 is an equidigital number, since it uses as much as digits as its factorization.

104312111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27312.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 104312111 is about 10213.3300641857. The cubic root of 104312111 is about 470.7369019696.

Adding to 104312111 its reverse (111213401), we get a palindrome (215525512).

The spelling of 104312111 in words is "one hundred four million, three hundred twelve thousand, one hundred eleven".

Divisors: 1 4591 22721 104312111