Search a number
-
+
104200221 = 389390263
BaseRepresentation
bin1100011010111…
…11100000011101
321021001220211110
412031133200131
5203133401341
614201212233
72403454506
oct615374035
9237056743
10104200221
1153900194
122aa91079
1318784548
14dba5bad
159234216
hex635f81d

104200221 has 8 divisors (see below), whose sum is σ = 140495040. Its totient is φ = 68686112.

The previous prime is 104200211. The next prime is 104200231. The reversal of 104200221 is 122002401.

It is an interprime number because it is at equal distance from previous prime (104200211) and next prime (104200231).

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

It is a cyclic number.

It is not a de Polignac number, because 104200221 - 27 = 104200093 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 104200197 and 104200206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104200211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194865 + ... + 195398.

It is an arithmetic number, because the mean of its divisors is an integer number (17561880).

Almost surely, 2104200221 is an apocalyptic number.

It is an amenable number.

104200221 is a deficient number, since it is larger than the sum of its proper divisors (36294819).

104200221 is an equidigital number, since it uses as much as digits as its factorization.

104200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390355.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 104200221 is about 10207.8509491469. The cubic root of 104200221 is about 470.5685303554.

Adding to 104200221 its reverse (122002401), we get a palindrome (226202622).

The spelling of 104200221 in words is "one hundred four million, two hundred thousand, two hundred twenty-one".

Divisors: 1 3 89 267 390263 1170789 34733407 104200221