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303014021 = 7318312267
BaseRepresentation
bin10010000011111…
…010000010000101
3210010011201002112
4102003322002011
51110032422041
650022350405
710336401542
oct2203720205
9703151075
10303014021
11146052a12
128558b405
134aa1494b
142c359bc9
151b906deb
hex120fa085

303014021 has 8 divisors (see below), whose sum is σ = 307468224. Its totient is φ = 298568160.

The previous prime is 303014017. The next prime is 303014083. The reversal of 303014021 is 120410303.

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

It is a cyclic number.

It is not a de Polignac number, because 303014021 - 22 = 303014017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 303013987 and 303014005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303014221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132530 + ... + 134796.

It is an arithmetic number, because the mean of its divisors is an integer number (38433528).

Almost surely, 2303014021 is an apocalyptic number.

It is an amenable number.

303014021 is a deficient number, since it is larger than the sum of its proper divisors (4454203).

303014021 is a wasteful number, since it uses less digits than its factorization.

303014021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4171.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 303014021 is about 17407.2979235722. The cubic root of 303014021 is about 671.6673560640.

Adding to 303014021 its reverse (120410303), we get a palindrome (423424324).

The spelling of 303014021 in words is "three hundred three million, fourteen thousand, twenty-one".

Divisors: 1 73 1831 2267 133663 165491 4150877 303014021