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30303103131 = 337160333879
BaseRepresentation
bin11100001110001101…
…001010100010011011
32220012212122010201000
4130032031022202123
5444030043300011
621530540400043
72121640061310
oct341615124233
986185563630
1030303103131
1111940347994
125a58546023
132b1c10b472
1416767c8d07
15bc554c356
hex70e34a89b

30303103131 has 16 divisors (see below), whose sum is σ = 51306841600. Its totient is φ = 17316058824.

The previous prime is 30303103123. The next prime is 30303103133. The reversal of 30303103131 is 13130130303.

It is not a de Polignac number, because 30303103131 - 23 = 30303103123 is a prime.

It is a super-2 number, since 2×303031031312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30303103133) 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 15 ways as a sum of consecutive naturals, for example, 80166751 + ... + 80167128.

It is an arithmetic number, because the mean of its divisors is an integer number (3206677600).

Almost surely, 230303103131 is an apocalyptic number.

30303103131 is a deficient number, since it is larger than the sum of its proper divisors (21003738469).

30303103131 is a wasteful number, since it uses less digits than its factorization.

30303103131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160333895 (or 160333889 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 18.

Adding to 30303103131 its reverse (13130130303), we get a palindrome (43433233434).

The spelling of 30303103131 in words is "thirty billion, three hundred three million, one hundred three thousand, one hundred thirty-one".

Divisors: 1 3 7 9 21 27 63 189 160333879 481001637 1122337153 1443004911 3367011459 4329014733 10101034377 30303103131