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104520213 = 347337547
BaseRepresentation
bin1100011101011…
…01101000010101
321021200011210000
412032231220111
5203224121323
614212121513
72406256440
oct616555025
9237604700
10104520213
1153aa9646
122b006299
13188670a5
14dc4a657
159298e43
hex63ada15

104520213 has 40 divisors (see below), whose sum is σ = 179296832. Its totient is φ = 59439744.

The previous prime is 104520203. The next prime is 104520223. The reversal of 104520213 is 312025401.

104520213 is a `hidden beast` number, since 1 + 0 + 452 + 0 + 213 = 666.

It is an interprime number because it is at equal distance from previous prime (104520203) and next prime (104520223).

It is not a de Polignac number, because 104520213 - 25 = 104520181 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 (104520203) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 190806 + ... + 191352.

Almost surely, 2104520213 is an apocalyptic number.

It is an amenable number.

104520213 is a deficient number, since it is larger than the sum of its proper divisors (74776619).

104520213 is an equidigital number, since it uses as much as digits as its factorization.

104520213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903 (or 894 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 104520213 is about 10223.5127524741. The cubic root of 104520213 is about 471.0497330746.

Adding to 104520213 its reverse (312025401), we get a palindrome (416545614).

The spelling of 104520213 in words is "one hundred four million, five hundred twenty thousand, two hundred thirteen".

Divisors: 1 3 7 9 21 27 63 81 189 337 547 567 1011 1641 2359 3033 3829 4923 7077 9099 11487 14769 21231 27297 34461 44307 63693 103383 184339 191079 310149 553017 1290373 1659051 3871119 4977153 11613357 14931459 34840071 104520213