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104068821 = 3229151483
BaseRepresentation
bin1100011001111…
…11011011010101
321020211020120210
412030333123111
5203120200241
614154320033
72402366433
oct614773325
9236736523
10104068821
115382049a
122aa29019
13187397ac
14db6dd53
15920a316
hex633f6d5

104068821 has 8 divisors (see below), whose sum is σ = 139365280. Its totient is φ = 69075792.

The previous prime is 104068807. The next prime is 104068843. The reversal of 104068821 is 128860401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 104068821 - 27 = 104068693 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 (104068021) 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 7 ways as a sum of consecutive naturals, for example, 75055 + ... + 76428.

It is an arithmetic number, because the mean of its divisors is an integer number (17420660).

Almost surely, 2104068821 is an apocalyptic number.

It is an amenable number.

104068821 is a deficient number, since it is larger than the sum of its proper divisors (35296459).

104068821 is a wasteful number, since it uses less digits than its factorization.

104068821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151715.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 104068821 is about 10201.4126962887. The cubic root of 104068821 is about 470.3706462128.

The spelling of 104068821 in words is "one hundred four million, sixty-eight thousand, eight hundred twenty-one".

Divisors: 1 3 229 687 151483 454449 34689607 104068821