Base | Representation |
---|---|
bin | 100001011010100… |
… | …0101001010010110 |
3 | 2220010202102101110 |
4 | 1002311011022112 |
5 | 4244012223110 |
6 | 303131235450 |
7 | 36533064552 |
oct | 10265051226 |
9 | 2803672343 |
10 | 1121211030 |
11 | 525992495 |
12 | 2735a8b86 |
13 | 14b3993a4 |
14 | a8ca0862 |
15 | 68675a20 |
hex | 42d45296 |
1121211030 has 32 divisors (see below), whose sum is σ = 2849196384. Its totient is φ = 281401856.
The previous prime is 1121211023. The next prime is 1121211041. The reversal of 1121211030 is 301121211.
It is a super-2 number, since 2×11212110302 = 2514228347587321800, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1121210997 and 1121211015.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1098717 + ... + 1099736.
It is an arithmetic number, because the mean of its divisors is an integer number (89037387).
Almost surely, 21121211030 is an apocalyptic number.
1121211030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1121211030 is an abundant number, since it is smaller than the sum of its proper divisors (1727985354).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1121211030 is a wasteful number, since it uses less digits than its factorization.
1121211030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2198480.
The product of its (nonzero) digits is 12, while the sum is 12.
The square root of 1121211030 is about 33484.4893943450. The cubic root of 1121211030 is about 1038.8729870988.
Adding to 1121211030 its reverse (301121211), we get a palindrome (1422332241).
The spelling of 1121211030 in words is "one billion, one hundred twenty-one million, two hundred eleven thousand, thirty".
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