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303004420021 = 17140912649957
BaseRepresentation
bin1000110100011000111…
…10001000011110110101
31001222002220021101012201
410122030132020132311
514431023112420041
6351110500144501
730614506034362
oct4321436103665
91058086241181
10303004420021
1110755a106556
124a883698131
132275b3ccc34
1410946179469
157d36327631
hex468c7887b5

303004420021 has 8 divisors (see below), whose sum is σ = 321055934040. Its totient is φ = 284978208768.

The previous prime is 303004419997. The next prime is 303004420027. The reversal of 303004420021 is 120024400303.

It can be written as a sum of positive squares in 4 ways, for example, as 65602576900 + 237401843121 = 256130^2 + 487239^2 .

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 303004420021 - 211 = 303004417973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303004420027) 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, 6301026 + ... + 6348931.

It is an arithmetic number, because the mean of its divisors is an integer number (40131991755).

Almost surely, 2303004420021 is an apocalyptic number.

It is an amenable number.

303004420021 is a deficient number, since it is larger than the sum of its proper divisors (18051514019).

303004420021 is a wasteful number, since it uses less digits than its factorization.

303004420021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12651383.

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

Adding to 303004420021 its reverse (120024400303), we get a palindrome (423028820324).

The spelling of 303004420021 in words is "three hundred three billion, four million, four hundred twenty thousand, twenty-one".

Divisors: 1 17 1409 23953 12649957 215049269 17823789413 303004420021