Base | Representation |
---|---|
bin | 10111000000000… |
… | …010100011010100 |
3 | 222220010001122122 |
4 | 113000002203110 |
5 | 1242241331140 |
6 | 102142515112 |
7 | 12363660203 |
oct | 2700024324 |
9 | 886101578 |
10 | 385886420 |
11 | 1889061a7 |
12 | a9295a98 |
13 | 61c3c57a |
14 | 3936d23a |
15 | 23d26ab5 |
hex | 170028d4 |
385886420 has 48 divisors (see below), whose sum is σ = 825261696. Its totient is φ = 151536000.
The previous prime is 385886407. The next prime is 385886437. The reversal of 385886420 is 24688583.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469610 + ... + 470430.
It is an arithmetic number, because the mean of its divisors is an integer number (17192952).
Almost surely, 2385886420 is an apocalyptic number.
It is an amenable number.
385886420 is an abundant number, since it is smaller than the sum of its proper divisors (439375276).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
385886420 is a wasteful number, since it uses less digits than its factorization.
385886420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1232 (or 1230 counting only the distinct ones).
The product of its (nonzero) digits is 368640, while the sum is 44.
The square root of 385886420 is about 19643.9919568300. The cubic root of 385886420 is about 728.0365200252.
The spelling of 385886420 in words is "three hundred eighty-five million, eight hundred eighty-six thousand, four hundred twenty".
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