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30231123089 = 31975197519
BaseRepresentation
bin11100001001111010…
…100101010010010001
32220000212012011122112
4130021322211102101
5443403131414324
621515445515105
72120104210046
oct341172452221
986025164575
1030231123089
1111903754252
125a38412a95
132b0a22861b
14166b00d1cd
15bbe07ec0e
hex709ea5491

30231123089 has 4 divisors (see below), whose sum is σ = 31206320640. Its totient is φ = 29255925540.

The previous prime is 30231123073. The next prime is 30231123101. The reversal of 30231123089 is 98032113203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30231123089 - 24 = 30231123073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30231123289) 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, 487598729 + ... + 487598790.

It is an arithmetic number, because the mean of its divisors is an integer number (7801580160).

Almost surely, 230231123089 is an apocalyptic number.

It is an amenable number.

30231123089 is a deficient number, since it is larger than the sum of its proper divisors (975197551).

30231123089 is an equidigital number, since it uses as much as digits as its factorization.

30231123089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975197550.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 30231123089 in words is "thirty billion, two hundred thirty-one million, one hundred twenty-three thousand, eighty-nine".

Divisors: 1 31 975197519 30231123089