Base | Representation |
---|---|
bin | 11001101000100… |
… | …01000111100000 |
3 | 112222121120020010 |
4 | 30310101013200 |
5 | 420021400232 |
6 | 33200444520 |
7 | 5220465231 |
oct | 1464210740 |
9 | 488546203 |
10 | 215028192 |
11 | 100417955 |
12 | 60019740 |
13 | 35719722 |
14 | 207b5088 |
15 | 13d270cc |
hex | cd111e0 |
215028192 has 96 divisors (see below), whose sum is σ = 580293504. Its totient is φ = 69696000.
The previous prime is 215028169. The next prime is 215028197. The reversal of 215028192 is 291820512.
It is a tau number, because it is divible by the number of its divisors (96).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (215028197) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649467 + ... + 649797.
It is an arithmetic number, because the mean of its divisors is an integer number (6044724).
Almost surely, 2215028192 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 215028192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290146752).
215028192 is an abundant number, since it is smaller than the sum of its proper divisors (365265312).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
215028192 is a wasteful number, since it uses less digits than its factorization.
215028192 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 512 (or 504 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 30.
The square root of 215028192 is about 14663.8396063241. The cubic root of 215028192 is about 599.0988249279.
The spelling of 215028192 in words is "two hundred fifteen million, twenty-eight thousand, one hundred ninety-two".
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