Base | Representation |
---|---|
bin | 10111001000111… |
… | …010111011011101 |
3 | 1000001111100011120 |
4 | 113020322323131 |
5 | 1243340330433 |
6 | 102304441153 |
7 | 12422524452 |
oct | 2710727335 |
9 | 1001440146 |
10 | 388214493 |
11 | 18a156327 |
12 | aa0191b9 |
13 | 62576124 |
14 | 397b7829 |
15 | 241367b3 |
hex | 1723aedd |
388214493 has 16 divisors (see below), whose sum is σ = 540587520. Its totient is φ = 247344944.
The previous prime is 388214483. The next prime is 388214569. The reversal of 388214493 is 394412883.
It is not a de Polignac number, because 388214493 - 25 = 388214461 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (388214413) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135130 + ... + 137972.
It is an arithmetic number, because the mean of its divisors is an integer number (33786720).
Almost surely, 2388214493 is an apocalyptic number.
It is an amenable number.
388214493 is a deficient number, since it is larger than the sum of its proper divisors (152373027).
388214493 is a wasteful number, since it uses less digits than its factorization.
388214493 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4848.
The product of its digits is 165888, while the sum is 42.
The square root of 388214493 is about 19703.1594674560. The cubic root of 388214493 is about 729.4976796982.
The spelling of 388214493 in words is "three hundred eighty-eight million, two hundred fourteen thousand, four hundred ninety-three".
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