Base | Representation |
---|---|
bin | 10010110101011110… |
… | …00100001101000101 |
3 | 222002201221002210112 |
4 | 21122233010031011 |
5 | 131202212101041 |
6 | 4351232002405 |
7 | 505406316566 |
oct | 113257041505 |
9 | 28081832715 |
10 | 10112222021 |
11 | 431a0a4090 |
12 | 1b62690405 |
13 | c52020035 |
14 | 6bd01616d |
15 | 3e2b78deb |
hex | 25abc4345 |
10112222021 has 8 divisors (see below), whose sum is σ = 11511146304. Its totient is φ = 8793236320.
The previous prime is 10112221981. The next prime is 10112222051. The reversal of 10112222021 is 12022221101.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 10112222021 - 26 = 10112221957 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 10112221987 and 10112222005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10112222051) 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, 19984376 + ... + 19984881.
It is an arithmetic number, because the mean of its divisors is an integer number (1438893288).
Almost surely, 210112222021 is an apocalyptic number.
10112222021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
10112222021 is a deficient number, since it is larger than the sum of its proper divisors (1398924283).
10112222021 is a wasteful number, since it uses less digits than its factorization.
10112222021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 39969291.
The product of its (nonzero) digits is 32, while the sum is 14.
Adding to 10112222021 its reverse (12022221101), we get a palindrome (22134443122).
The spelling of 10112222021 in words is "ten billion, one hundred twelve million, two hundred twenty-two thousand, twenty-one".
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