Base | Representation |
---|---|
bin | 100101100010… |
… | …0101110010111 |
3 | 1101000212002111 |
4 | 1023010232113 |
5 | 20014231101 |
6 | 1541451451 |
7 | 326164351 |
oct | 113045627 |
9 | 41025074 |
10 | 19680151 |
11 | 10121a97 |
12 | 6710b87 |
13 | 410097a |
14 | 28840d1 |
15 | 1adb251 |
hex | 12c4b97 |
19680151 has 2 divisors, whose sum is σ = 19680152. Its totient is φ = 19680150.
The previous prime is 19680149. The next prime is 19680161. The reversal of 19680151 is 15108691.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 19680151 - 21 = 19680149 is a prime.
Together with 19680149, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (19680121) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9840075 + 9840076.
It is an arithmetic number, because the mean of its divisors is an integer number (9840076).
Almost surely, 219680151 is an apocalyptic number.
19680151 is a deficient number, since it is larger than the sum of its proper divisors (1).
19680151 is an equidigital number, since it uses as much as digits as its factorization.
19680151 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2160, while the sum is 31.
The square root of 19680151 is about 4436.2316215455. The cubic root of 19680151 is about 269.9869723938.
The spelling of 19680151 in words is "nineteen million, six hundred eighty thousand, one hundred fifty-one".
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