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104284213 = 112861853
BaseRepresentation
bin1100011011101…
…00000000110101
321021020012001021
412031310000311
5203144043323
614203101141
72404254415
oct615640065
9237205037
10104284213
1153958300
122ab117b1
13187b3847
14dbc8645
15924e05d
hex6374035

104284213 has 6 divisors (see below), whose sum is σ = 114626582. Its totient is φ = 94803720.

The previous prime is 104284199. The next prime is 104284247. The reversal of 104284213 is 312482401.

It can be written as a sum of positive squares in only one way, i.e., 99540529 + 4743684 = 9977^2 + 2178^2 .

It is not a de Polignac number, because 104284213 - 213 = 104276021 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 (104284283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 430806 + ... + 431047.

Almost surely, 2104284213 is an apocalyptic number.

It is an amenable number.

104284213 is a deficient number, since it is larger than the sum of its proper divisors (10342369).

104284213 is an equidigital number, since it uses as much as digits as its factorization.

104284213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861875 (or 861864 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 104284213 is about 10211.9642087113. The cubic root of 104284213 is about 470.6949324454.

It can be divided in two parts, 10428 and 4213, that added together give a palindrome (14641).

The spelling of 104284213 in words is "one hundred four million, two hundred eighty-four thousand, two hundred thirteen".

Divisors: 1 11 121 861853 9480383 104284213