Base | Representation |
---|---|
bin | 10110111100101… |
… | …111110111110111 |
3 | 222211111012220212 |
4 | 112330233313313 |
5 | 1242031222404 |
6 | 102112220035 |
7 | 12353434301 |
oct | 2674576767 |
9 | 884435825 |
10 | 385023479 |
11 | 188376925 |
12 | a8b3a61b |
13 | 619c9859 |
14 | 391c6971 |
15 | 23c0606e |
hex | 16f2fdf7 |
385023479 has 2 divisors, whose sum is σ = 385023480. Its totient is φ = 385023478.
The previous prime is 385023449. The next prime is 385023539. The reversal of 385023479 is 974320583.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 385023479 - 216 = 384957943 is a prime.
It is a Chen prime.
It is equal to p20579648 and since 385023479 and 20579648 have the same sum of digits, it is a Honaker prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (385023449) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192511739 + 192511740.
It is an arithmetic number, because the mean of its divisors is an integer number (192511740).
Almost surely, 2385023479 is an apocalyptic number.
385023479 is a deficient number, since it is larger than the sum of its proper divisors (1).
385023479 is an equidigital number, since it uses as much as digits as its factorization.
385023479 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 41.
The square root of 385023479 is about 19622.0151615475. The cubic root of 385023479 is about 727.4934228650.
The spelling of 385023479 in words is "three hundred eighty-five million, twenty-three thousand, four hundred seventy-nine".
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