Base | Representation |
---|---|
bin | 10001011001001… |
… | …10000010010111 |
3 | 101011112212221221 |
4 | 20230212002113 |
5 | 244323022423 |
6 | 22251151211 |
7 | 3421124233 |
oct | 1054460227 |
9 | 334485857 |
10 | 145907863 |
11 | 753a7812 |
12 | 40a45507 |
13 | 242c841a |
14 | 155415c3 |
15 | cc21e5d |
hex | 8b26097 |
145907863 has 2 divisors, whose sum is σ = 145907864. Its totient is φ = 145907862.
The previous prime is 145907851. The next prime is 145907891. The reversal of 145907863 is 368709541.
It is a weak prime.
It is an emirp because it is prime and its reverse (368709541) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 145907863 - 225 = 112353431 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (145907813) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72953931 + 72953932.
It is an arithmetic number, because the mean of its divisors is an integer number (72953932).
Almost surely, 2145907863 is an apocalyptic number.
145907863 is a deficient number, since it is larger than the sum of its proper divisors (1).
145907863 is an equidigital number, since it uses as much as digits as its factorization.
145907863 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 181440, while the sum is 43.
The square root of 145907863 is about 12079.2327156985. The cubic root of 145907863 is about 526.4529523767.
The spelling of 145907863 in words is "one hundred forty-five million, nine hundred seven thousand, eight hundred sixty-three".
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