Base | Representation |
---|---|
bin | 11001011100000… |
… | …00101100010110 |
3 | 112212112020101021 |
4 | 30232000230112 |
5 | 414111404204 |
6 | 33101351354 |
7 | 5200524415 |
oct | 1456005426 |
9 | 485466337 |
10 | 213388054 |
11 | aa4a7670 |
12 | 5b56855a |
13 | 35294029 |
14 | 204a947c |
15 | 13b01154 |
hex | cb80b16 |
213388054 has 16 divisors (see below), whose sum is σ = 349869456. Its totient is φ = 96803200.
The previous prime is 213388033. The next prime is 213388057. The reversal of 213388054 is 450883312.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (213388057) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2154 + ... + 20770.
It is an arithmetic number, because the mean of its divisors is an integer number (21866841).
Almost surely, 2213388054 is an apocalyptic number.
213388054 is a deficient number, since it is larger than the sum of its proper divisors (136481402).
213388054 is a wasteful number, since it uses less digits than its factorization.
213388054 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19151.
The product of its (nonzero) digits is 23040, while the sum is 34.
The square root of 213388054 is about 14607.8079806657. The cubic root of 213388054 is about 597.5717171433.
It can be divided in two parts, 21338 and 8054, that added together give a palindrome (29392).
The spelling of 213388054 in words is "two hundred thirteen million, three hundred eighty-eight thousand, fifty-four".
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