Base | Representation |
---|---|
bin | 10001010010111… |
… | …01100110010111 |
3 | 101010000011202211 |
4 | 20221131212113 |
5 | 244120234441 |
6 | 22221414251 |
7 | 3411134536 |
oct | 1051354627 |
9 | 333004684 |
10 | 145086871 |
11 | 74996a06 |
12 | 4070a387 |
13 | 2409b827 |
14 | 153aa31d |
15 | cb0da81 |
hex | 8a5d997 |
145086871 has 2 divisors, whose sum is σ = 145086872. Its totient is φ = 145086870.
The previous prime is 145086863. The next prime is 145086881. The reversal of 145086871 is 178680541.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 145086871 - 23 = 145086863 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (145086881) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72543435 + 72543436.
It is an arithmetic number, because the mean of its divisors is an integer number (72543436).
Almost surely, 2145086871 is an apocalyptic number.
145086871 is a deficient number, since it is larger than the sum of its proper divisors (1).
145086871 is an equidigital number, since it uses as much as digits as its factorization.
145086871 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 53760, while the sum is 40.
The square root of 145086871 is about 12045.2011606282. The cubic root of 145086871 is about 525.4636822656.
The spelling of 145086871 in words is "one hundred forty-five million, eighty-six thousand, eight hundred seventy-one".
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