Base | Representation |
---|---|
bin | 11010001101101… |
… | …10010011111010 |
3 | 120022210000220020 |
4 | 31012312103322 |
5 | 422243233010 |
6 | 33453111310 |
7 | 5310053223 |
oct | 1506662372 |
9 | 508700806 |
10 | 219899130 |
11 | 103144520 |
12 | 61788536 |
13 | 36733839 |
14 | 212c224a |
15 | 1448a470 |
hex | d1b64fa |
219899130 has 64 divisors (see below), whose sum is σ = 580929408. Its totient is φ = 52828160.
The previous prime is 219899123. The next prime is 219899149. The reversal of 219899130 is 31998912.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34342 + ... + 40238.
It is an arithmetic number, because the mean of its divisors is an integer number (9077022).
Almost surely, 2219899130 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 219899130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290464704).
219899130 is an abundant number, since it is smaller than the sum of its proper divisors (361030278).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
219899130 is a wasteful number, since it uses less digits than its factorization.
219899130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6031.
The product of its (nonzero) digits is 34992, while the sum is 42.
The square root of 219899130 is about 14828.9962573331. The cubic root of 219899130 is about 603.5887969846.
The spelling of 219899130 in words is "two hundred nineteen million, eight hundred ninety-nine thousand, one hundred thirty".
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