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30131114442 = 231113223671753
BaseRepresentation
bin11100000011111101…
…000101000111001010
32212202220000012120120
4130003331011013022
5443202031130232
621501514204110
72114451150462
oct340375050712
985686005516
1030131114442
1111862257280
125a0aa23636
132ac25b0c00
14165ba18ba2
15bb53c792c
hex703f451ca

30131114442 has 192 divisors, whose sum is σ = 75433337856. Its totient is φ = 7936980480.

The previous prime is 30131114441. The next prime is 30131114459. The reversal of 30131114442 is 24441113103.

It is not an unprimeable number, because it can be changed into a prime (30131114441) 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 95 ways as a sum of consecutive naturals, for example, 17187438 + ... + 17189190.

It is an arithmetic number, because the mean of its divisors is an integer number (392881968).

Almost surely, 230131114442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30131114442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37716668928).

30131114442 is an abundant number, since it is smaller than the sum of its proper divisors (45302223414).

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

30131114442 is a wasteful number, since it uses less digits than its factorization.

30131114442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885 (or 1872 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 30131114442 its reverse (24441113103), we get a palindrome (54572227545).

The spelling of 30131114442 in words is "thirty billion, one hundred thirty-one million, one hundred fourteen thousand, four hundred forty-two".