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30502648745 = 56100529749
BaseRepresentation
bin11100011010000110…
…010111101110101001
32220201210010002211022
4130122012113232221
5444432134224440
622002425342225
72126612144042
oct343206275651
986653102738
1030502648745
1111a32a4a518
125ab3337975
132b515669aa
1416950cd8c9
15bd7d16cb5
hex71a197ba9

30502648745 has 4 divisors (see below), whose sum is σ = 36603178500. Its totient is φ = 24402118992.

The previous prime is 30502648733. The next prime is 30502648777. The reversal of 30502648745 is 54784620503.

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 12595123984 + 17907524761 = 112228^2 + 133819^2 .

It is a cyclic number.

It is not a de Polignac number, because 30502648745 - 220 = 30501600169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30502648696 and 30502648705.

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, 3050264870 + ... + 3050264879.

It is an arithmetic number, because the mean of its divisors is an integer number (9150794625).

Almost surely, 230502648745 is an apocalyptic number.

It is an amenable number.

30502648745 is a deficient number, since it is larger than the sum of its proper divisors (6100529755).

30502648745 is an equidigital number, since it uses as much as digits as its factorization.

30502648745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100529754.

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 30502648745 in words is "thirty billion, five hundred two million, six hundred forty-eight thousand, seven hundred forty-five".

Divisors: 1 5 6100529749 30502648745