Base | Representation |
---|---|
bin | 11100001000110010… |
… | …000001100001001111 |
3 | 2212222112101210221000 |
4 | 130020302001201033 |
5 | 443333244232343 |
6 | 21513530111343 |
7 | 2116453426452 |
oct | 341062014117 |
9 | 85875353830 |
10 | 30212102223 |
11 | 118a3a42626 |
12 | 5a31b7b553 |
13 | 2b062c8a84 |
14 | 166869b499 |
15 | bbc573ed3 |
hex | 708c8184f |
30212102223 has 16 divisors (see below), whose sum is σ = 44812051200. Its totient is φ = 20117379960.
The previous prime is 30212102159. The next prime is 30212102237. The reversal of 30212102223 is 32220121203.
It is not a de Polignac number, because 30212102223 - 26 = 30212102159 is a prime.
It is a super-2 number, since 2×302121022232 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30212102196 and 30212102205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30214102223) 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, 644193 + ... + 689498.
It is an arithmetic number, because the mean of its divisors is an integer number (2800753200).
Almost surely, 230212102223 is an apocalyptic number.
30212102223 is a deficient number, since it is larger than the sum of its proper divisors (14599948977).
30212102223 is a wasteful number, since it uses less digits than its factorization.
30212102223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1334539 (or 1334533 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 30212102223 its reverse (32220121203), we get a palindrome (62432223426).
The spelling of 30212102223 in words is "thirty billion, two hundred twelve million, one hundred two thousand, two hundred twenty-three".
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