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30203300123 = 251120331873
BaseRepresentation
bin11100001000010000…
…011100100100011011
32212221220211121201022
4130020100130210123
5443324021100443
621513013313055
72116315546403
oct341020344433
985856747638
1030203300123
1111899a80467
125a2b03578b
132b04536529
141667449803
15bbb8d5e68
hex70841c91b

30203300123 has 4 divisors (see below), whose sum is σ = 30323632248. Its totient is φ = 30082968000.

The previous prime is 30203300089. The next prime is 30203300203. The reversal of 30203300123 is 32100330203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30203300123 - 212 = 30203296027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30203300623) 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, 60165686 + ... + 60166187.

It is an arithmetic number, because the mean of its divisors is an integer number (7580908062).

Almost surely, 230203300123 is an apocalyptic number.

30203300123 is a deficient number, since it is larger than the sum of its proper divisors (120332125).

30203300123 is a wasteful number, since it uses less digits than its factorization.

30203300123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120332124.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 30203300123 its reverse (32100330203), we get a palindrome (62303630326).

The spelling of 30203300123 in words is "thirty billion, two hundred three million, three hundred thousand, one hundred twenty-three".

Divisors: 1 251 120331873 30203300123