Base | Representation |
---|---|
bin | 10001010101001… |
… | …01001010110111 |
3 | 101010120001220022 |
4 | 20222211022313 |
5 | 244204130043 |
6 | 22231555355 |
7 | 3413465315 |
oct | 1052451267 |
9 | 333501808 |
10 | 145380023 |
11 | 75077188 |
12 | 4082bb5b |
13 | 241720a9 |
14 | 154450b5 |
15 | cb6a868 |
hex | 8aa52b7 |
145380023 has 2 divisors, whose sum is σ = 145380024. Its totient is φ = 145380022.
The previous prime is 145379989. The next prime is 145380083. The reversal of 145380023 is 320083541.
145380023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 145380023 - 210 = 145378999 is a prime.
It is a super-2 number, since 2×1453800232 = 42270702174961058, which contains 22 as substring.
It is a Sophie Germain prime.
It is a junction number, because it is equal to n+sod(n) for n = 145379974 and 145380001.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (145380083) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72690011 + 72690012.
It is an arithmetic number, because the mean of its divisors is an integer number (72690012).
Almost surely, 2145380023 is an apocalyptic number.
145380023 is a deficient number, since it is larger than the sum of its proper divisors (1).
145380023 is an equidigital number, since it uses as much as digits as its factorization.
145380023 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2880, while the sum is 26.
The square root of 145380023 is about 12057.3638495320. The cubic root of 145380023 is about 525.8173487662.
The spelling of 145380023 in words is "one hundred forty-five million, three hundred eighty thousand, twenty-three".
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