Base | Representation |
---|---|
bin | 101000101101100101… |
… | …1001101111100010111 |
3 | 22100200002010001100122 |
4 | 1101123023031330113 |
5 | 2413023311411041 |
6 | 104055255102155 |
7 | 6213400231265 |
oct | 1213313157427 |
9 | 270602101318 |
10 | 87429013271 |
11 | 34095442776 |
12 | 14b3b97195b |
13 | 832429a162 |
14 | 433568d435 |
15 | 241a7ccc4b |
hex | 145b2cdf17 |
87429013271 has 2 divisors, whose sum is σ = 87429013272. Its totient is φ = 87429013270.
The previous prime is 87429013267. The next prime is 87429013277. The reversal of 87429013271 is 17231092478.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 87429013271 - 22 = 87429013267 is a prime.
It is a Sophie Germain prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (87429013277) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43714506635 + 43714506636.
It is an arithmetic number, because the mean of its divisors is an integer number (43714506636).
Almost surely, 287429013271 is an apocalyptic number.
87429013271 is a deficient number, since it is larger than the sum of its proper divisors (1).
87429013271 is an equidigital number, since it uses as much as digits as its factorization.
87429013271 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 169344, while the sum is 44.
The spelling of 87429013271 in words is "eighty-seven billion, four hundred twenty-nine million, thirteen thousand, two hundred seventy-one".
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