Base | Representation |
---|---|
bin | 100110100010110… |
… | …0001001001101101 |
3 | 10100010120001021221 |
4 | 1031011201021231 |
5 | 10122040322031 |
6 | 332155423341 |
7 | 44022542011 |
oct | 11505411155 |
9 | 3303501257 |
10 | 1293292141 |
11 | 604036589 |
12 | 301154b51 |
13 | 177c29a2b |
14 | c3a96541 |
15 | 78817a11 |
hex | 4d16126d |
1293292141 has 4 divisors (see below), whose sum is σ = 1295833500. Its totient is φ = 1290750784.
The previous prime is 1293292087. The next prime is 1293292229. The reversal of 1293292141 is 1412923921.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 1020546916 + 272745225 = 31946^2 + 16515^2 .
It is a cyclic number.
It is not a de Polignac number, because 1293292141 - 211 = 1293290093 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1293292097 and 1293292106.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1293292541) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1269916 + ... + 1270933.
It is an arithmetic number, because the mean of its divisors is an integer number (323958375).
Almost surely, 21293292141 is an apocalyptic number.
It is an amenable number.
1293292141 is a deficient number, since it is larger than the sum of its proper divisors (2541359).
1293292141 is an equidigital number, since it uses as much as digits as its factorization.
1293292141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2541358.
The product of its digits is 7776, while the sum is 34.
The square root of 1293292141 is about 35962.3711815559. The cubic root of 1293292141 is about 1089.5124888321.
The spelling of 1293292141 in words is "one billion, two hundred ninety-three million, two hundred ninety-two thousand, one hundred forty-one".
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