Base | Representation |
---|---|
bin | 100110110011100… |
… | …0111110110001101 |
3 | 10100202010121022101 |
4 | 1031213013312031 |
5 | 10131314221024 |
6 | 333112315101 |
7 | 44160451651 |
oct | 11547076615 |
9 | 3322117271 |
10 | 1302101389 |
11 | 609003056 |
12 | 3040a2a91 |
13 | 1799c25c4 |
14 | c4d0aa61 |
15 | 794a7c44 |
hex | 4d9c7d8d |
1302101389 has 2 divisors, whose sum is σ = 1302101390. Its totient is φ = 1302101388.
The previous prime is 1302101351. The next prime is 1302101419. The reversal of 1302101389 is 9831012031.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 845937225 + 456164164 = 29085^2 + 21358^2 .
It is an emirp because it is prime and its reverse (9831012031) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1302101389 - 211 = 1302099341 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1302101089) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651050694 + 651050695.
It is an arithmetic number, because the mean of its divisors is an integer number (651050695).
Almost surely, 21302101389 is an apocalyptic number.
It is an amenable number.
1302101389 is a deficient number, since it is larger than the sum of its proper divisors (1).
1302101389 is an equidigital number, since it uses as much as digits as its factorization.
1302101389 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1296, while the sum is 28.
The square root of 1302101389 is about 36084.6420101405. The cubic root of 1302101389 is about 1091.9806282819.
The spelling of 1302101389 in words is "one billion, three hundred two million, one hundred one thousand, three hundred eighty-nine".
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