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204224401 = 617942379
BaseRepresentation
bin11000010110000…
…11011110010001
3112020021200012201
430023003132101
5404240140101
632133123201
75026610263
oct1413033621
9466250181
10204224401
11a53088a7
1258489501
1333406054
141d1a1b33
1512de0e01
hexc2c3791

204224401 has 8 divisors (see below), whose sum is σ = 210204800. Its totient is φ = 198329040.

The previous prime is 204224399. The next prime is 204224411. The reversal of 204224401 is 104422402.

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 204224401 - 21 = 204224399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204224411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16371 + ... + 26008.

It is an arithmetic number, because the mean of its divisors is an integer number (26275600).

Almost surely, 2204224401 is an apocalyptic number.

It is an amenable number.

204224401 is a deficient number, since it is larger than the sum of its proper divisors (5980399).

204224401 is an equidigital number, since it uses as much as digits as its factorization.

204224401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42519.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 204224401 is about 14290.7103042501. The cubic root of 204224401 is about 588.8923016152.

Adding to 204224401 its reverse (104422402), we get a palindrome (308646803).

The spelling of 204224401 in words is "two hundred four million, two hundred twenty-four thousand, four hundred one".

Divisors: 1 61 79 4819 42379 2585119 3347941 204224401