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30131110232 = 233766388779
BaseRepresentation
bin11100000011111101…
…000100000101011000
32212202212222222210122
4130003331010011120
5443202031011412
621501514132412
72114451132266
oct340375040530
985685888718
1030131110232
11118622540a3
125a0aa21108
132ac25ac012
14165ba17436
15bb53c6572
hex703f44158

30131110232 has 8 divisors (see below), whose sum is σ = 56495831700. Its totient is φ = 15065555112.

The previous prime is 30131110181. The next prime is 30131110237. The reversal of 30131110232 is 23201113103.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 30131110232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30131110237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1883194382 + ... + 1883194397.

Almost surely, 230131110232 is an apocalyptic number.

It is an amenable number.

30131110232 is a deficient number, since it is larger than the sum of its proper divisors (26364721468).

30131110232 is a wasteful number, since it uses less digits than its factorization.

30131110232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3766388785 (or 3766388781 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30131110232 its reverse (23201113103), we get a palindrome (53332223335).

The spelling of 30131110232 in words is "thirty billion, one hundred thirty-one million, one hundred ten thousand, two hundred thirty-two".

Divisors: 1 2 4 8 3766388779 7532777558 15065555116 30131110232