Base | Representation |
---|---|
bin | 11011111100110011… |
… | …011000100011011001 |
3 | 2212110112020110202220 |
4 | 123330303120203121 |
5 | 442430322211441 |
6 | 21441550414253 |
7 | 2111463262005 |
oct | 337463304331 |
9 | 85415213686 |
10 | 30011132121 |
11 | 11800557833 |
12 | 5996801389 |
13 | 2aa3792059 |
14 | 1649b05705 |
15 | ba9ac7466 |
hex | 6fccd88d9 |
30011132121 has 16 divisors (see below), whose sum is σ = 42375965184. Its totient is φ = 18827266304.
The previous prime is 30011132119. The next prime is 30011132131. The reversal of 30011132121 is 12123111003.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 30011132121 - 21 = 30011132119 is a prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 30011132121.
It is not an unprimeable number, because it can be changed into a prime (30011132131) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267160 + ... + 362486.
It is an arithmetic number, because the mean of its divisors is an integer number (2648497824).
Almost surely, 230011132121 is an apocalyptic number.
It is an amenable number.
30011132121 is a deficient number, since it is larger than the sum of its proper divisors (12364833063).
30011132121 is a wasteful number, since it uses less digits than its factorization.
30011132121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 101520.
The product of its (nonzero) digits is 36, while the sum is 15.
Adding to 30011132121 its reverse (12123111003), we get a palindrome (42134243124).
The spelling of 30011132121 in words is "thirty billion, eleven million, one hundred thirty-two thousand, one hundred twenty-one".
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