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30331012103 = 724115097567
BaseRepresentation
bin11100001111110111…
…101000010000000111
32220021211011001121122
4130033313220100013
5444104214341403
621533414504155
72122426230500
oct341767502007
986254131548
1030331012103
111195507a357
125a6596505b
132b24b30752
14167a3b1ba7
15bc7c11838
hex70fde8407

30331012103 has 12 divisors (see below), whose sum is σ = 36143577792. Its totient is φ = 25363910880.

The previous prime is 30331012097. The next prime is 30331012133. The reversal of 30331012103 is 30121013303.

It is not a de Polignac number, because 30331012103 - 212 = 30331008007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30331012133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7546775 + ... + 7550792.

It is an arithmetic number, because the mean of its divisors is an integer number (3011964816).

Almost surely, 230331012103 is an apocalyptic number.

30331012103 is a deficient number, since it is larger than the sum of its proper divisors (5812565689).

30331012103 is a wasteful number, since it uses less digits than its factorization.

30331012103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15097622 (or 15097615 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 30331012103 its reverse (30121013303), we get a palindrome (60452025406).

The spelling of 30331012103 in words is "thirty billion, three hundred thirty-one million, twelve thousand, one hundred three".

Divisors: 1 7 41 49 287 2009 15097567 105682969 619000247 739780783 4333001729 30331012103