Base | Representation |
---|---|
bin | 10010101011101110… |
… | …00110011011101101 |
3 | 221220001001021000001 |
4 | 21111313012123231 |
5 | 131020243122341 |
6 | 4335151104301 |
7 | 503364231532 |
oct | 112567063355 |
9 | 27801037001 |
10 | 10030442221 |
11 | 4287a17778 |
12 | 1b3b212091 |
13 | c3b0b8817 |
14 | 6b2208d89 |
15 | 3da8c2d31 |
hex | 255dc66ed |
10030442221 has 16 divisors (see below), whose sum is σ = 10931184576. Its totient is φ = 9165332736.
The previous prime is 10030442207. The next prime is 10030442239. The reversal of 10030442221 is 12224403001.
It is a cyclic number.
It is not a de Polignac number, because 10030442221 - 25 = 10030442189 is a prime.
It is a super-2 number, since 2×100304422212 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10030442921) 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, 276670 + ... + 310816.
It is an arithmetic number, because the mean of its divisors is an integer number (683199036).
Almost surely, 210030442221 is an apocalyptic number.
It is an amenable number.
10030442221 is a deficient number, since it is larger than the sum of its proper divisors (900742355).
10030442221 is a wasteful number, since it uses less digits than its factorization.
10030442221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34668.
The product of its (nonzero) digits is 384, while the sum is 19.
Adding to 10030442221 its reverse (12224403001), we get a palindrome (22254845222).
The spelling of 10030442221 in words is "ten billion, thirty million, four hundred forty-two thousand, two hundred twenty-one".
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