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30450253453 = 421214333751
BaseRepresentation
bin11100010110111110…
…011111111010001101
32220121010112010222221
4130112332133322031
5444330231102303
621553314335341
72125404612064
oct342676377215
986533463887
1030450253453
1111a06413124
125a9988a551
132b43750269
14168c1711db
15bd34174bd
hex716f9fe8d

30450253453 has 8 divisors (see below), whose sum is σ = 30537729536. Its totient is φ = 30362850000.

The previous prime is 30450253417. The next prime is 30450253459. The reversal of 30450253453 is 35435205403.

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 30450253453 - 225 = 30416699021 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 (30450253459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885328 + ... + 919078.

It is an arithmetic number, because the mean of its divisors is an integer number (3817216192).

Almost surely, 230450253453 is an apocalyptic number.

It is an amenable number.

30450253453 is a deficient number, since it is larger than the sum of its proper divisors (87476083).

30450253453 is a wasteful number, since it uses less digits than its factorization.

30450253453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36315.

The product of its (nonzero) digits is 108000, while the sum is 34.

Adding to 30450253453 its reverse (35435205403), we get a palindrome (65885458856).

The spelling of 30450253453 in words is "thirty billion, four hundred fifty million, two hundred fifty-three thousand, four hundred fifty-three".

Divisors: 1 421 2143 33751 902203 14209171 72328393 30450253453