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304221241 = 13713071699
BaseRepresentation
bin10010001000100…
…000110000111001
3210012110001002101
4102020200300321
51110340034431
650104303401
710352560252
oct2210406071
9705401071
10304221241
111467a7a15
1285a71b61
134b04828c
142c591b29
151ba94961
hex12220c39

304221241 has 8 divisors (see below), whose sum is σ = 306856800. Its totient is φ = 301591968.

The previous prime is 304221221. The next prime is 304221263. The reversal of 304221241 is 142122403.

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 304221241 - 25 = 304221209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304221221) 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, 178210 + ... + 179908.

It is an arithmetic number, because the mean of its divisors is an integer number (38357100).

Almost surely, 2304221241 is an apocalyptic number.

It is an amenable number.

304221241 is a deficient number, since it is larger than the sum of its proper divisors (2635559).

304221241 is a wasteful number, since it uses less digits than its factorization.

304221241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 304221241 is about 17441.9391410474. The cubic root of 304221241 is about 672.5581573323.

Adding to 304221241 its reverse (142122403), we get a palindrome (446343644).

The spelling of 304221241 in words is "three hundred four million, two hundred twenty-one thousand, two hundred forty-one".

Divisors: 1 137 1307 1699 179059 232763 2220593 304221241