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304131422 = 27832271153
BaseRepresentation
bin10010001000001…
…010110101011110
3210012021110212202
4102020022311132
51110324201142
650102331502
710352034350
oct2210126536
9705243782
10304131422
11146746491
1285a29b92
134b01642a
142c56b0d0
151ba78032
hex1220ad5e

304131422 has 32 divisors (see below), whose sum is σ = 530433792. Its totient is φ = 128093184.

The previous prime is 304131409. The next prime is 304131427. The reversal of 304131422 is 224131403.

It is a junction number, because it is equal to n+sod(n) for n = 304131394 and 304131403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304131427) 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 15 ways as a sum of consecutive naturals, for example, 263198 + ... + 264350.

It is an arithmetic number, because the mean of its divisors is an integer number (16576056).

Almost surely, 2304131422 is an apocalyptic number.

304131422 is a deficient number, since it is larger than the sum of its proper divisors (226302370).

304131422 is a wasteful number, since it uses less digits than its factorization.

304131422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 304131422 is about 17439.3641512528. The cubic root of 304131422 is about 672.4919615960.

Adding to 304131422 its reverse (224131403), we get a palindrome (528262825).

The spelling of 304131422 in words is "three hundred four million, one hundred thirty-one thousand, four hundred twenty-two".

Divisors: 1 2 7 14 83 166 227 454 581 1153 1162 1589 2306 3178 8071 16142 18841 37682 95699 131887 191398 261731 263774 523462 669893 1339786 1832117 3664234 21723673 43447346 152065711 304131422