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30303344021 = 919265912401
BaseRepresentation
bin11100001110001110…
…000101010110010101
32220012220002101010212
4130032032011112111
5444030124002041
621530545455205
72121642113516
oct341616052625
986186071125
1030303344021
11119404a1975
125a58641505
132b1c193cc2
14167684ca0d
15bc55988eb
hex70e385595

30303344021 has 8 divisors (see below), whose sum is σ = 30350174400. Its totient is φ = 30256545600.

The previous prime is 30303343963. The next prime is 30303344053. The reversal of 30303344021 is 12044330303.

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 30303344021 - 222 = 30299149717 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 (30303344221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2437421 + ... + 2449821.

It is an arithmetic number, because the mean of its divisors is an integer number (3793771800).

Almost surely, 230303344021 is an apocalyptic number.

It is an amenable number.

30303344021 is a deficient number, since it is larger than the sum of its proper divisors (46830379).

30303344021 is a wasteful number, since it uses less digits than its factorization.

30303344021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15979.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 30303344021 its reverse (12044330303), we get a palindrome (42347674324).

The spelling of 30303344021 in words is "thirty billion, three hundred three million, three hundred forty-four thousand, twenty-one".

Divisors: 1 919 2659 12401 2443621 11396519 32974259 30303344021