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30143244132 = 22321609520393
BaseRepresentation
bin11100000100101011…
…010110011101100100
32212210201211110101100
4130010223112131210
5443213132303012
621503030200100
72114656230141
oct340453263544
985721743340
1030143244132
1111869091511
125a12ab3030
132ac4c69c41
14165d4953c8
15bb64c18dc
hex704ad6764

30143244132 has 36 divisors (see below), whose sum is σ = 76242924940. Its totient is φ = 10041484032.

The previous prime is 30143244121. The next prime is 30143244139. The reversal of 30143244132 is 23144234103.

30143244132 is a `hidden beast` number, since 301 + 4 + 324 + 4 + 1 + 32 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22444234596 + 7699009536 = 149814^2 + 87744^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 30143244096 and 30143244105.

It is not an unprimeable number, because it can be changed into a prime (30143244139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202273 + ... + 318120.

Almost surely, 230143244132 is an apocalyptic number.

It is an amenable number.

30143244132 is an abundant number, since it is smaller than the sum of its proper divisors (46099680808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30143244132 is a wasteful number, since it uses less digits than its factorization.

30143244132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522012 (or 522007 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 30143244132 its reverse (23144234103), we get a palindrome (53287478235).

The spelling of 30143244132 in words is "thirty billion, one hundred forty-three million, two hundred forty-four thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 1609 3218 4827 6436 9654 14481 19308 28962 57924 520393 1040786 1561179 2081572 3122358 4683537 6244716 9367074 18734148 837312337 1674624674 2511937011 3349249348 5023874022 7535811033 10047748044 15071622066 30143244132