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304223241 = 3714486821
BaseRepresentation
bin10010001000100…
…001010000001001
3210012110010211110
4102020201100021
51110340120431
650104320533
710352566140
oct2210412011
9705403743
10304223241
111467a9473
1285a73149
134b04916a
142c592757
151ba95346
hex12221409

304223241 has 8 divisors (see below), whose sum is σ = 463578304. Its totient is φ = 173841840.

The previous prime is 304223221. The next prime is 304223263. The reversal of 304223241 is 142322403.

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

It is not a de Polignac number, because 304223241 - 27 = 304223113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 14486821 = 304223241 / (3 + 0 + 4 + 2 + 2 + 3 + 2 + 4 + 1).

It is not an unprimeable number, because it can be changed into a prime (304223221) 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, 7243390 + ... + 7243431.

It is an arithmetic number, because the mean of its divisors is an integer number (57947288).

Almost surely, 2304223241 is an apocalyptic number.

It is an amenable number.

304223241 is a deficient number, since it is larger than the sum of its proper divisors (159355063).

304223241 is a wasteful number, since it uses less digits than its factorization.

304223241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14486831.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 304223241 is about 17441.9964740279. The cubic root of 304223241 is about 672.5596311647.

Adding to 304223241 its reverse (142322403), we get a palindrome (446545644).

The spelling of 304223241 in words is "three hundred four million, two hundred twenty-three thousand, two hundred forty-one".

Divisors: 1 3 7 21 14486821 43460463 101407747 304223241