Base | Representation |
---|---|
bin | 100101000011000… |
… | …1010101011111110 |
3 | 10012122011120121220 |
4 | 1022012022223332 |
5 | 10021220134442 |
6 | 323204334210 |
7 | 42543302346 |
oct | 11206125376 |
9 | 3178146556 |
10 | 1243130622 |
11 | 588795488 |
12 | 2a83a4366 |
13 | 16a715c66 |
14 | bb159d26 |
15 | 74209eec |
hex | 4a18aafe |
1243130622 has 32 divisors (see below), whose sum is σ = 2532487680. Its totient is φ = 406724640.
The previous prime is 1243130621. The next prime is 1243130641. The reversal of 1243130622 is 2260313421.
It is a junction number, because it is equal to n+sod(n) for n = 1243130592 and 1243130601.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1243130621) 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, 91183 + ... + 103925.
It is an arithmetic number, because the mean of its divisors is an integer number (79140240).
Almost surely, 21243130622 is an apocalyptic number.
1243130622 is an abundant number, since it is smaller than the sum of its proper divisors (1289357058).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1243130622 is a wasteful number, since it uses less digits than its factorization.
1243130622 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13048.
The product of its (nonzero) digits is 1728, while the sum is 24.
The square root of 1243130622 is about 35258.0575471764. The cubic root of 1243130622 is about 1075.2404357097.
The spelling of 1243130622 in words is "one billion, two hundred forty-three million, one hundred thirty thousand, six hundred twenty-two".
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