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30131003111 = 11191273173581
BaseRepresentation
bin11100000011111100…
…101001111011100111
32212202212210112212012
4130003330221323213
5443202014044421
621501511544435
72114450205056
oct340374517347
985685715765
1030131003111
1111862190670
125a0a98b11b
132ac2572331
14165b9ca39d
15bb53a495b
hex703f29ee7

30131003111 has 32 divisors (see below), whose sum is σ = 34992414720. Its totient is φ = 25657430400.

The previous prime is 30131003107. The next prime is 30131003143. The reversal of 30131003111 is 11130013103.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30131003111 - 22 = 30131003107 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 (30131003011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8412341 + ... + 8415921.

It is an arithmetic number, because the mean of its divisors is an integer number (1093512960).

Almost surely, 230131003111 is an apocalyptic number.

30131003111 is a deficient number, since it is larger than the sum of its proper divisors (4861411609).

30131003111 is a wasteful number, since it uses less digits than its factorization.

30131003111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4055.

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 30131003111 its reverse (11130013103), we get a palindrome (41261016214).

The spelling of 30131003111 in words is "thirty billion, one hundred thirty-one million, three thousand, one hundred eleven".

Divisors: 1 11 19 127 209 317 1397 2413 3487 3581 6023 26543 39391 40259 66253 68039 442849 454787 748429 764921 1135177 5002657 8414131 8640953 12486947 21568363 95050483 144167479 237251993 1585842269 2739182101 30131003111