Base | Representation |
---|---|
bin | 1000011111010… |
… | …10011100110101 |
3 | 11222000002110221 |
4 | 10033222130311 |
5 | 121212334101 |
6 | 11022214341 |
7 | 1523213422 |
oct | 417523465 |
9 | 158002427 |
10 | 71214901 |
11 | 3722089a |
12 | 1ba243b1 |
13 | 119a57c4 |
14 | 965ad49 |
15 | 63baaa1 |
hex | 43ea735 |
71214901 has 2 divisors, whose sum is σ = 71214902. Its totient is φ = 71214900.
The previous prime is 71214883. The next prime is 71214911. The reversal of 71214901 is 10941217.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 56400100 + 14814801 = 7510^2 + 3849^2 .
It is a cyclic number.
It is not a de Polignac number, because 71214901 - 221 = 69117749 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (71214911) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35607450 + 35607451.
It is an arithmetic number, because the mean of its divisors is an integer number (35607451).
Almost surely, 271214901 is an apocalyptic number.
It is an amenable number.
71214901 is a deficient number, since it is larger than the sum of its proper divisors (1).
71214901 is an equidigital number, since it uses as much as digits as its factorization.
71214901 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 504, while the sum is 25.
The square root of 71214901 is about 8438.8921666295. The cubic root of 71214901 is about 414.4991315498.
The spelling of 71214901 in words is "seventy-one million, two hundred fourteen thousand, nine hundred one".
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