Search a number
-
+
30131111303 = 137730930091
BaseRepresentation
bin11100000011111101…
…000100010110000111
32212202220000001021022
4130003331010112013
5443202031030203
621501514141355
72114451135356
oct340375042607
985686001238
1030131111303
1111862254987
125a0aa2185b
132ac25ac657
14165ba1799d
15bb53c6a38
hex703f44587

30131111303 has 8 divisors (see below), whose sum is σ = 30356207760. Its totient is φ = 29906089920.

The previous prime is 30131111299. The next prime is 30131111443. The reversal of 30131111303 is 30311113103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30131111303 - 22 = 30131111299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30131111903) 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 7 ways as a sum of consecutive naturals, for example, 986288 + ... + 1016378.

It is an arithmetic number, because the mean of its divisors is an integer number (3794525970).

Almost surely, 230131111303 is an apocalyptic number.

30131111303 is a deficient number, since it is larger than the sum of its proper divisors (225096457).

30131111303 is a wasteful number, since it uses less digits than its factorization.

30131111303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37537.

The product of its (nonzero) digits is 81, while the sum is 17.

Adding to 30131111303 its reverse (30311113103), we get a palindrome (60442224406).

The spelling of 30131111303 in words is "thirty billion, one hundred thirty-one million, one hundred eleven thousand, three hundred three".

Divisors: 1 137 7309 30091 1001333 4122467 219935119 30131111303