Base | Representation |
---|---|
bin | 11001001100111… |
… | …11100010011000 |
3 | 112201211002221011 |
4 | 30212133202120 |
5 | 413110322430 |
6 | 32551223304 |
7 | 5145005536 |
oct | 1446374230 |
9 | 481732834 |
10 | 211417240 |
11 | a93809a1 |
12 | 5a977b34 |
13 | 34a53c78 |
14 | 20115156 |
15 | 1386222a |
hex | c99f898 |
211417240 has 64 divisors (see below), whose sum is σ = 491974560. Its totient is φ = 81715200.
The previous prime is 211417229. The next prime is 211417243. The reversal of 211417240 is 42714112.
211417240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (211417243) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173112 + ... + 174328.
Almost surely, 2211417240 is an apocalyptic number.
211417240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 211417240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245987280).
211417240 is an abundant number, since it is smaller than the sum of its proper divisors (280557320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
211417240 is a wasteful number, since it uses less digits than its factorization.
211417240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1372 (or 1368 counting only the distinct ones).
The product of its (nonzero) digits is 448, while the sum is 22.
The square root of 211417240 is about 14540.1939464369. The cubic root of 211417240 is about 595.7263356317.
The spelling of 211417240 in words is "two hundred eleven million, four hundred seventeen thousand, two hundred forty".
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