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303431230 = 2530343123
BaseRepresentation
bin10010000101011…
…111111000111110
3210010221220101201
4102011133320332
51110134244410
650035330114
710343060104
oct2205377076
9703856351
10303431230
11146308413
128575093a
134ab2c80b
142c427c74
151b98a83a
hex1215fe3e

303431230 has 8 divisors (see below), whose sum is σ = 546176232. Its totient is φ = 121372488.

The previous prime is 303431137. The next prime is 303431243. The reversal of 303431230 is 32134303.

303431230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×3034312302 = 184141022678625800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 303431198 and 303431207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15171552 + ... + 15171571.

It is an arithmetic number, because the mean of its divisors is an integer number (68272029).

Almost surely, 2303431230 is an apocalyptic number.

303431230 is a deficient number, since it is larger than the sum of its proper divisors (242745002).

303431230 is a wasteful number, since it uses less digits than its factorization.

303431230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30343130.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 303431230 is about 17419.2775395537. The cubic root of 303431230 is about 671.9754794884.

Adding to 303431230 its reverse (32134303), we get a palindrome (335565533).

The spelling of 303431230 in words is "three hundred three million, four hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 30343123 60686246 151715615 303431230