Base | Representation |
---|---|
bin | 11100001000101010… |
… | …110011110100110011 |
3 | 2212222101211201211021 |
4 | 130020222303310303 |
5 | 443332303223443 |
6 | 21513421400311 |
7 | 2116431362161 |
oct | 341052636463 |
9 | 85871751737 |
10 | 30210211123 |
11 | 118a2970834 |
12 | 5a31409097 |
13 | 2b05ab6091 |
14 | 1668328231 |
15 | bbc2ed9ed |
hex | 708ab3d33 |
30210211123 has 8 divisors (see below), whose sum is σ = 30380682240. Its totient is φ = 30040107720.
The previous prime is 30210211121. The next prime is 30210211127. The reversal of 30210211123 is 32111201203.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30210211123 - 21 = 30210211121 is a prime.
It is a super-2 number, since 2×302102111232 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30210211097 and 30210211106.
It is not an unprimeable number, because it can be changed into a prime (30210211121) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73686 + ... + 256612.
It is an arithmetic number, because the mean of its divisors is an integer number (3797585280).
Almost surely, 230210211123 is an apocalyptic number.
30210211123 is a deficient number, since it is larger than the sum of its proper divisors (170471117).
30210211123 is a wasteful number, since it uses less digits than its factorization.
30210211123 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 183857.
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 30210211123 its reverse (32111201203), we get a palindrome (62321412326).
The spelling of 30210211123 in words is "thirty billion, two hundred ten million, two hundred eleven thousand, one hundred twenty-three".
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