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30523043173 = 713213300859
BaseRepresentation
bin11100011011010100…
…001010110101100101
32220210012111020201111
4130123110022311211
51000002344340143
622004434425021
72130250405030
oct343324126545
986705436644
1030523043173
1111a4350a117
125aba132171
132b558577bc
141697abc017
15bd99e499d
hex71b50ad65

30523043173 has 8 divisors (see below), whose sum is σ = 34909895360. Its totient is φ = 26142795360.

The previous prime is 30523043137. The next prime is 30523043189. The reversal of 30523043173 is 37134032503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30523043173 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 (30523013173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1641183 + ... + 1659676.

It is an arithmetic number, because the mean of its divisors is an integer number (4363736920).

Almost surely, 230523043173 is an apocalyptic number.

It is an amenable number.

30523043173 is a deficient number, since it is larger than the sum of its proper divisors (4386852187).

30523043173 is a wasteful number, since it uses less digits than its factorization.

30523043173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3302187.

The product of its (nonzero) digits is 22680, while the sum is 31.

Adding to 30523043173 its reverse (37134032503), we get a palindrome (67657075676).

The spelling of 30523043173 in words is "thirty billion, five hundred twenty-three million, forty-three thousand, one hundred seventy-three".

Divisors: 1 7 1321 9247 3300859 23106013 4360434739 30523043173