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30311030103 = 390907111143
BaseRepresentation
bin11100001110101011…
…011001110101010111
32220020102112212110120
4130032223121311113
5444034110430403
621531422323023
72122064335104
oct341653316527
986212485416
1030311030103
1111944871602
125a5b129473
132b20955593
14167788daab
15bc60b5e53
hex70ead9d57

30311030103 has 8 divisors (see below), whose sum is σ = 40415515008. Its totient is φ = 20206949304.

The previous prime is 30311030089. The next prime is 30311030119. The reversal of 30311030103 is 30103011303.

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

It is not a de Polignac number, because 30311030103 - 218 = 30310767959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311030153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217150 + ... + 328292.

It is an arithmetic number, because the mean of its divisors is an integer number (5051939376).

Almost surely, 230311030103 is an apocalyptic number.

30311030103 is a deficient number, since it is larger than the sum of its proper divisors (10104484905).

30311030103 is a wasteful number, since it uses less digits than its factorization.

30311030103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202053.

The product of its (nonzero) digits is 81, while the sum is 15.

Adding to 30311030103 its reverse (30103011303), we get a palindrome (60414041406).

The spelling of 30311030103 in words is "thirty billion, three hundred eleven million, thirty thousand, one hundred three".

Divisors: 1 3 90907 111143 272721 333429 10103676701 30311030103