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301304221 = 3121314561
BaseRepresentation
bin10001111101011…
…000100110011101
3202222221211200121
4101331120212131
51104113213341
645521554541
710316020651
oct2175304635
9688854617
10301304221
11145095359
1284aa5a51
134a56662a
142c032a61
151b6ba4d1
hex11f5899d

301304221 has 8 divisors (see below), whose sum is σ = 311237888. Its totient is φ = 291384000.

The previous prime is 301304177. The next prime is 301304233. The reversal of 301304221 is 122403103.

It is a happy number.

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 301304221 - 211 = 301302173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 301304195 and 301304204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (301304281) 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, 63781 + ... + 68341.

It is an arithmetic number, because the mean of its divisors is an integer number (38904736).

Almost surely, 2301304221 is an apocalyptic number.

301304221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

301304221 is a deficient number, since it is larger than the sum of its proper divisors (9933667).

301304221 is a wasteful number, since it uses less digits than its factorization.

301304221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6723.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 301304221 is about 17358.1168621484. The cubic root of 301304221 is about 670.4016460110.

Adding to 301304221 its reverse (122403103), we get a palindrome (423707324).

The spelling of 301304221 in words is "three hundred one million, three hundred four thousand, two hundred twenty-one".

Divisors: 1 31 2131 4561 66061 141391 9719491 301304221