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30555310052 = 2253144128821
BaseRepresentation
bin11100011101001111…
…010000011111100100
32220212110012120120002
4130131033100133210
51000034124410202
622011550200432
72131121564411
oct343517203744
986773176502
1030555310052
1111a5a748763
125b08ab3118
132b5c444527
14169c0bb108
15bdc76a302
hex71d3d07e4

30555310052 has 12 divisors (see below), whose sum is σ = 54480694716. Its totient is φ = 14989397280.

The previous prime is 30555310033. The next prime is 30555310057. The reversal of 30555310052 is 25001355503.

It can be written as a sum of positive squares in 2 ways, for example, as 24603804736 + 5951505316 = 156856^2 + 77146^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30555309997 and 30555310024.

It is not an unprimeable number, because it can be changed into a prime (30555310057) by changing a digit.

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, 72064199 + ... + 72064622.

It is an arithmetic number, because the mean of its divisors is an integer number (4540057893).

Almost surely, 230555310052 is an apocalyptic number.

It is an amenable number.

30555310052 is a deficient number, since it is larger than the sum of its proper divisors (23925384664).

30555310052 is a wasteful number, since it uses less digits than its factorization.

30555310052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144128878 (or 144128876 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 29.

Adding to 30555310052 its reverse (25001355503), we get a palindrome (55556665555).

The spelling of 30555310052 in words is "thirty billion, five hundred fifty-five million, three hundred ten thousand, fifty-two".

Divisors: 1 2 4 53 106 212 144128821 288257642 576515284 7638827513 15277655026 30555310052