Search a number
-
+
302343231 = 3673149749
BaseRepresentation
bin10010000001010…
…110010000111111
3210001220121221110
4102001112100333
51104344440411
650000133103
710330606101
oct2201262077
9701817843
10302343231
11145734a43
1285307193
134a83b528
142c223571
151b8232a6
hex1205643f

302343231 has 8 divisors (see below), whose sum is σ = 403726000. Its totient is φ = 201261312.

The previous prime is 302343229. The next prime is 302343253. The reversal of 302343231 is 132343203.

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

It is not a de Polignac number, because 302343231 - 21 = 302343229 is a prime.

It is a super-2 number, since 2×3023432312 = 182822858663038722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 302343198 and 302343207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302343131) 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 7 ways as a sum of consecutive naturals, for example, 72856 + ... + 76893.

It is an arithmetic number, because the mean of its divisors is an integer number (50465750).

Almost surely, 2302343231 is an apocalyptic number.

302343231 is a deficient number, since it is larger than the sum of its proper divisors (101382769).

302343231 is a wasteful number, since it uses less digits than its factorization.

302343231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150425.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 302343231 is about 17388.0197549922. The cubic root of 302343231 is about 671.1713607336.

Adding to 302343231 its reverse (132343203), we get a palindrome (434686434).

The spelling of 302343231 in words is "three hundred two million, three hundred forty-three thousand, two hundred thirty-one".

Divisors: 1 3 673 2019 149749 449247 100781077 302343231