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303423231 = 3379266863
BaseRepresentation
bin10010000101011…
…101111011111111
3210010221111102110
4102011131323333
51110134020411
650035225103
710343024556
oct2205357377
9703844373
10303423231
11146302401
1285748193
134ab28c97
142c424d9d
151b9882a6
hex1215deff

303423231 has 8 divisors (see below), whose sum is σ = 405633280. Its totient is φ = 201747672.

The previous prime is 303423229. The next prime is 303423269. The reversal of 303423231 is 132324303.

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

It is not a de Polignac number, because 303423231 - 21 = 303423229 is a prime.

It is a super-2 number, since 2×3034232312 = 184131314220958722, 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 = 303423198 and 303423207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303423031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132295 + ... + 134568.

It is an arithmetic number, because the mean of its divisors is an integer number (50704160).

Almost surely, 2303423231 is an apocalyptic number.

303423231 is a deficient number, since it is larger than the sum of its proper divisors (102210049).

303423231 is a wasteful number, since it uses less digits than its factorization.

303423231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267245.

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

The square root of 303423231 is about 17419.0479360957. The cubic root of 303423231 is about 671.9695746039.

Adding to 303423231 its reverse (132324303), we get a palindrome (435747534).

The spelling of 303423231 in words is "three hundred three million, four hundred twenty-three thousand, two hundred thirty-one".

Divisors: 1 3 379 1137 266863 800589 101141077 303423231