Base | Representation |
---|---|
bin | 11100000011011010… |
… | …110011111010111011 |
3 | 2212202021002210210100 |
4 | 130003122303322323 |
5 | 443142231144011 |
6 | 21500553450443 |
7 | 2114311614201 |
oct | 340332637273 |
9 | 85667083710 |
10 | 30122131131 |
11 | 11858180a54 |
12 | 5a07a10a23 |
13 | 2ac0787041 |
14 | 165a75b071 |
15 | bb4700d56 |
hex | 7036b3ebb |
30122131131 has 12 divisors (see below), whose sum is σ = 43592944408. Its totient is φ = 20043021024.
The previous prime is 30122131103. The next prime is 30122131147. The reversal of 30122131131 is 13113122103.
30122131131 is a `hidden beast` number, since 301 + 2 + 21 + 311 + 31 = 666.
It is not a de Polignac number, because 30122131131 - 214 = 30122114747 is a prime.
It is a super-2 number, since 2×301221311312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30122133131) 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, 3195010 + ... + 3204423.
Almost surely, 230122131131 is an apocalyptic number.
30122131131 is a deficient number, since it is larger than the sum of its proper divisors (13470813277).
30122131131 is a wasteful number, since it uses less digits than its factorization.
30122131131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6399962 (or 6399959 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
Adding to 30122131131 its reverse (13113122103), we get a palindrome (43235253234).
The spelling of 30122131131 in words is "thirty billion, one hundred twenty-two million, one hundred thirty-one thousand, one hundred thirty-one".
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