Base | Representation |
---|---|
bin | 11100001000110010… |
… | …001011000001000001 |
3 | 2212222112110210021200 |
4 | 130020302023001001 |
5 | 443333302003441 |
6 | 21513531011413 |
7 | 2116453651041 |
oct | 341062130101 |
9 | 85875423250 |
10 | 30212141121 |
11 | 118a3a69878 |
12 | 5a31b99b69 |
13 | 2b063106a6 |
14 | 16686ab721 |
15 | bbc5807b6 |
hex | 708c8b041 |
30212141121 has 12 divisors (see below), whose sum is σ = 43652935248. Its totient is φ = 20135346264.
The previous prime is 30212141077. The next prime is 30212141123. The reversal of 30212141121 is 12114121203.
It is not a de Polignac number, because 30212141121 - 231 = 28064657473 is a prime.
It is a super-2 number, since 2×302121411212 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30212141094 and 30212141103.
It is not an unprimeable number, because it can be changed into a prime (30212141123) 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, 475195 + ... + 535008.
It is an arithmetic number, because the mean of its divisors is an integer number (3637744604).
Almost surely, 230212141121 is an apocalyptic number.
It is an amenable number.
30212141121 is a deficient number, since it is larger than the sum of its proper divisors (13440794127).
30212141121 is a wasteful number, since it uses less digits than its factorization.
30212141121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1013532 (or 1013529 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 18.
Adding to 30212141121 its reverse (12114121203), we get a palindrome (42326262324).
The spelling of 30212141121 in words is "thirty billion, two hundred twelve million, one hundred forty-one thousand, one hundred twenty-one".
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