Base | Representation |
---|---|
bin | 11001011000001… |
… | …01111000000000 |
3 | 112211120200022100 |
4 | 30230011320000 |
5 | 413444304432 |
6 | 33042510400 |
7 | 5163330645 |
oct | 1454057000 |
9 | 484520270 |
10 | 212884992 |
11 | aa193711 |
12 | 5b365400 |
13 | 35149068 |
14 | 203b7dcc |
15 | 13a5207c |
hex | cb05e00 |
212884992 has 60 divisors (see below), whose sum is σ = 614413800. Its totient is φ = 70960128.
The previous prime is 212884981. The next prime is 212884993. The reversal of 212884992 is 299488212.
It is a happy number.
212884992 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212884993) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18492 + ... + 27707.
It is an arithmetic number, because the mean of its divisors is an integer number (10240230).
Almost surely, 2212884992 is an apocalyptic number.
It is an amenable number.
212884992 is an abundant number, since it is smaller than the sum of its proper divisors (401528808).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212884992 is an equidigital number, since it uses as much as digits as its factorization.
212884992 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 46223 (or 46204 counting only the distinct ones).
The product of its digits is 165888, while the sum is 45.
The square root of 212884992 is about 14590.5788781666. The cubic root of 212884992 is about 597.1017561793.
The spelling of 212884992 in words is "two hundred twelve million, eight hundred eighty-four thousand, nine hundred ninety-two".
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