Base | Representation |
---|---|
bin | 1000011111101100001… |
… | …0010110100111101111 |
3 | 111221201012102121121121 |
4 | 2013323002112213233 |
5 | 4342344034301202 |
6 | 151014013041411 |
7 | 13354445202163 |
oct | 2077302264757 |
9 | 457635377547 |
10 | 145945618927 |
11 | 56993551699 |
12 | 24350a86267 |
13 | 109bb5ca4c4 |
14 | 70c7122ca3 |
15 | 3be2bb6537 |
hex | 21fb0969ef |
145945618927 has 2 divisors, whose sum is σ = 145945618928. Its totient is φ = 145945618926.
The previous prime is 145945618913. The next prime is 145945618967. The reversal of 145945618927 is 729816549541.
It is a weak prime.
It is an emirp because it is prime and its reverse (729816549541) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 145945618927 - 223 = 145937230319 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (145945618967) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72972809463 + 72972809464.
It is an arithmetic number, because the mean of its divisors is an integer number (72972809464).
Almost surely, 2145945618927 is an apocalyptic number.
145945618927 is a deficient number, since it is larger than the sum of its proper divisors (1).
145945618927 is an equidigital number, since it uses as much as digits as its factorization.
145945618927 is an evil number, because the sum of its binary digits is even.
The product of its digits is 21772800, while the sum is 61.
The spelling of 145945618927 in words is "one hundred forty-five billion, nine hundred forty-five million, six hundred eighteen thousand, nine hundred twenty-seven".
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