Base | Representation |
---|---|
bin | 1101001110101111… |
… | …10111110010110100 |
3 | 200100000120210221200 |
4 | 12213113313302310 |
5 | 104021333121322 |
6 | 3132454212500 |
7 | 341006450511 |
oct | 64727676264 |
9 | 20300523850 |
10 | 7103020212 |
11 | 3015519242 |
12 | 1462954130 |
13 | 892766352 |
14 | 4b54d6308 |
15 | 2b88b88ac |
hex | 1a75f7cb4 |
7103020212 has 72 divisors (see below), whose sum is σ = 18061839432. Its totient is φ = 2353612800.
The previous prime is 7103020201. The next prime is 7103020229. The reversal of 7103020212 is 2120203017.
It can be written as a sum of positive squares in 4 ways, for example, as 613751076 + 6489269136 = 24774^2 + 80556^2 .
It is a super-2 number, since 2×71030202122 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8062012 + ... + 8062892.
It is an arithmetic number, because the mean of its divisors is an integer number (250858881).
Almost surely, 27103020212 is an apocalyptic number.
It is an amenable number.
7103020212 is an abundant number, since it is smaller than the sum of its proper divisors (10958819220).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7103020212 is a wasteful number, since it uses less digits than its factorization.
7103020212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1969 (or 1964 counting only the distinct ones).
The product of its (nonzero) digits is 168, while the sum is 18.
The square root of 7103020212 is about 84279.4174873083. The cubic root of 7103020212 is about 1922.2698318142.
Adding to 7103020212 its reverse (2120203017), we get a palindrome (9223223229).
The spelling of 7103020212 in words is "seven billion, one hundred three million, twenty thousand, two hundred twelve".
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