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30120313303 = 83362895341
BaseRepresentation
bin11100000011010011…
…111000000111010111
32212202010200110012101
4130003103320013113
5443141300011203
621500450502531
72114260303333
oct340323700727
985663613171
1030120313303
111185714a213
125a07294a47
132ac029b7c2
14165a4067c3
15bb449241d
hex7034f81d7

30120313303 has 4 divisors (see below), whose sum is σ = 30483208728. Its totient is φ = 29757417880.

The previous prime is 30120313291. The next prime is 30120313309. The reversal of 30120313303 is 30331302103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30331302103 = 127923714857.

It is a cyclic number.

It is not a de Polignac number, because 30120313303 - 229 = 29583442391 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 (30120313309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181447588 + ... + 181447753.

It is an arithmetic number, because the mean of its divisors is an integer number (7620802182).

Almost surely, 230120313303 is an apocalyptic number.

30120313303 is a deficient number, since it is larger than the sum of its proper divisors (362895425).

30120313303 is an equidigital number, since it uses as much as digits as its factorization.

30120313303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362895424.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 30120313303 its reverse (30331302103), we get a palindrome (60451615406).

The spelling of 30120313303 in words is "thirty billion, one hundred twenty million, three hundred thirteen thousand, three hundred three".

Divisors: 1 83 362895341 30120313303