Base | Representation |
---|---|
bin | 11010010011001… |
… | …01001000111110 |
3 | 120101010102012110 |
4 | 31021211020332 |
5 | 422434141410 |
6 | 33520314450 |
7 | 5316125043 |
oct | 1511451076 |
9 | 511112173 |
10 | 220615230 |
11 | 103593540 |
12 | 61a72a26 |
13 | 36924774 |
14 | 2142b1ca |
15 | 1457c720 |
hex | d26523e |
220615230 has 32 divisors (see below), whose sum is σ = 577611648. Its totient is φ = 53482400.
The previous prime is 220615217. The next prime is 220615249. The reversal of 220615230 is 32516022.
220615230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 220615197 and 220615206.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333936 + ... + 334595.
It is an arithmetic number, because the mean of its divisors is an integer number (18050364).
Almost surely, 2220615230 is an apocalyptic number.
220615230 is an abundant number, since it is smaller than the sum of its proper divisors (356996418).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
220615230 is a wasteful number, since it uses less digits than its factorization.
220615230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 668552.
The product of its (nonzero) digits is 720, while the sum is 21.
The square root of 220615230 is about 14853.1218940666. The cubic root of 220615230 is about 604.2432813080.
The spelling of 220615230 in words is "two hundred twenty million, six hundred fifteen thousand, two hundred thirty".
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