Search a number
-
+
300442231 = 1973251863
BaseRepresentation
bin10001111010000…
…110001001110111
3202221100001021001
4101322012021313
51103403122411
645451304131
710305500605
oct2172061167
9687301231
10300442231
11144656771
128474b047
134a32418b
142bc8a875
151b599dc1
hex11e86277

300442231 has 16 divisors (see below), whose sum is σ = 322237440. Its totient is φ = 279288000.

The previous prime is 300442199. The next prime is 300442243. The reversal of 300442231 is 132244003.

It is a cyclic number.

It is not a de Polignac number, because 300442231 - 25 = 300442199 is a prime.

It is a super-2 number, since 2×3004422312 = 180531068336514722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 300442199 and 300442208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300445231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347706 + ... + 348568.

It is an arithmetic number, because the mean of its divisors is an integer number (20139840).

Almost surely, 2300442231 is an apocalyptic number.

300442231 is a deficient number, since it is larger than the sum of its proper divisors (21795209).

300442231 is a wasteful number, since it uses less digits than its factorization.

300442231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 300442231 is about 17333.2694838568. The cubic root of 300442231 is about 669.7617263660.

Adding to 300442231 its reverse (132244003), we get a palindrome (432686234).

The spelling of 300442231 in words is "three hundred million, four hundred forty-two thousand, two hundred thirty-one".

Divisors: 1 19 73 251 863 1387 4769 16397 18323 62999 216613 348137 1196981 4115647 15812749 300442231