Base | Representation |
---|---|
bin | 10111001010111… |
… | …101101011110100 |
3 | 1000002111112211200 |
4 | 113022331223310 |
5 | 1244010000233 |
6 | 102324132500 |
7 | 12430215060 |
oct | 2712755364 |
9 | 1002445750 |
10 | 388750068 |
11 | 18a491753 |
12 | aa237130 |
13 | 62702b35 |
14 | 398b6aa0 |
15 | 241e0313 |
hex | 172bdaf4 |
388750068 has 72 divisors (see below), whose sum is σ = 1125022080. Its totient is φ = 110877120.
The previous prime is 388750049. The next prime is 388750091. The reversal of 388750068 is 860057883.
388750068 is a `hidden beast` number, since 3 + 8 + 87 + 500 + 68 = 666.
It is a super-2 number, since 2×3887500682 = 302253230740009248, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 205953 + ... + 207831.
Almost surely, 2388750068 is an apocalyptic number.
It is an amenable number.
388750068 is an abundant number, since it is smaller than the sum of its proper divisors (736272012).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
388750068 is a wasteful number, since it uses less digits than its factorization.
388750068 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2717 (or 2712 counting only the distinct ones).
The product of its (nonzero) digits is 322560, while the sum is 45.
The square root of 388750068 is about 19716.7458775529. The cubic root of 388750068 is about 729.8329936343.
The spelling of 388750068 in words is "three hundred eighty-eight million, seven hundred fifty thousand, sixty-eight".
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