Base | Representation |
---|---|
bin | 10111001001000… |
… | …011101001010000 |
3 | 1000001120011010202 |
4 | 113021003221100 |
5 | 1243343001232 |
6 | 102305314332 |
7 | 12423033521 |
oct | 2711035120 |
9 | 1001504122 |
10 | 388250192 |
11 | 18a180130 |
12 | aa0359a8 |
13 | 62589455 |
14 | 397c6848 |
15 | 24142162 |
hex | 17243a50 |
388250192 has 40 divisors (see below), whose sum is σ = 822000960. Its totient is φ = 176180480.
The previous prime is 388250183. The next prime is 388250201. The reversal of 388250192 is 291052883.
It is an interprime number because it is at equal distance from previous prime (388250183) and next prime (388250201).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129284 + ... + 132252.
It is an arithmetic number, because the mean of its divisors is an integer number (20550024).
Almost surely, 2388250192 is an apocalyptic number.
It is an amenable number.
388250192 is an abundant number, since it is smaller than the sum of its proper divisors (433750768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
388250192 is a wasteful number, since it uses less digits than its factorization.
388250192 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3731 (or 3725 counting only the distinct ones).
The product of its (nonzero) digits is 34560, while the sum is 38.
The square root of 388250192 is about 19704.0653673297. The cubic root of 388250192 is about 729.5200397937.
The spelling of 388250192 in words is "three hundred eighty-eight million, two hundred fifty thousand, one hundred ninety-two".
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