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30231015005 = 56046203001
BaseRepresentation
bin11100001001111010…
…001010111001011101
32220000211222200101102
4130021322022321131
5443403114440010
621515443322445
72120103246662
oct341172127135
986024880342
1030231015005
1111903690024
125a38380425
132b0a1bb379
14166adc1a69
15bbe05cba5
hex709e8ae5d

30231015005 has 4 divisors (see below), whose sum is σ = 36277218012. Its totient is φ = 24184812000.

The previous prime is 30231014971. The next prime is 30231015043. The reversal of 30231015005 is 50051013203.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9698704324 + 20532310681 = 98482^2 + 143291^2 .

It is not a de Polignac number, because 30231015005 - 218 = 30230752861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3023101496 + ... + 3023101505.

It is an arithmetic number, because the mean of its divisors is an integer number (9069304503).

Almost surely, 230231015005 is an apocalyptic number.

It is an amenable number.

30231015005 is a deficient number, since it is larger than the sum of its proper divisors (6046203007).

30231015005 is an equidigital number, since it uses as much as digits as its factorization.

30231015005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6046203006.

The product of its (nonzero) digits is 450, while the sum is 20.

Adding to 30231015005 its reverse (50051013203), we get a palindrome (80282028208).

The spelling of 30231015005 in words is "thirty billion, two hundred thirty-one million, fifteen thousand, five".

Divisors: 1 5 6046203001 30231015005