Base | Representation |
---|---|
bin | 11001101010110… |
… | …01101100011100 |
3 | 120000011200000100 |
4 | 30311121230130 |
5 | 420110403333 |
6 | 33211101100 |
7 | 5223144021 |
oct | 1465315434 |
9 | 500150010 |
10 | 215325468 |
11 | 100600236 |
12 | 60141790 |
13 | 357c1b27 |
14 | 20851548 |
15 | 13d85213 |
hex | cd59b1c |
215325468 has 72 divisors (see below), whose sum is σ = 579616128. Its totient is φ = 67166208.
The previous prime is 215325449. The next prime is 215325479. The reversal of 215325468 is 864523512.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117205 + ... + 119027.
It is an arithmetic number, because the mean of its divisors is an integer number (8050224).
Almost surely, 2215325468 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 215325468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289808064).
215325468 is an abundant number, since it is smaller than the sum of its proper divisors (364290660).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
215325468 is a wasteful number, since it uses less digits than its factorization.
215325468 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2043 (or 2038 counting only the distinct ones).
The product of its digits is 57600, while the sum is 36.
The square root of 215325468 is about 14673.9724682855. The cubic root of 215325468 is about 599.3747820638.
It can be divided in two parts, 21532 and 5468, that added together give a cube (27000 = 303).
The spelling of 215325468 in words is "two hundred fifteen million, three hundred twenty-five thousand, four hundred sixty-eight".
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