Base | Representation |
---|---|
bin | 11001011000111… |
… | …11100110010000 |
3 | 112211210000211120 |
4 | 30230133212100 |
5 | 414011142402 |
6 | 33045042240 |
7 | 5164250061 |
oct | 1454374620 |
9 | 484700746 |
10 | 212990352 |
11 | aa255893 |
12 | 5b3b6380 |
13 | 35184cc3 |
14 | 20404568 |
15 | 13a733bc |
hex | cb1f990 |
212990352 has 80 divisors (see below), whose sum is σ = 578445120. Its totient is φ = 67447296.
The previous prime is 212990339. The next prime is 212990353. The reversal of 212990352 is 253099212.
212990352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (212990353) 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, 74974 + ... + 77762.
It is an arithmetic number, because the mean of its divisors is an integer number (7230564).
Almost surely, 2212990352 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 212990352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289222560).
212990352 is an abundant number, since it is smaller than the sum of its proper divisors (365454768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212990352 is a wasteful number, since it uses less digits than its factorization.
212990352 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2880 (or 2874 counting only the distinct ones).
The product of its (nonzero) digits is 9720, while the sum is 33.
The square root of 212990352 is about 14594.1889805498. The cubic root of 212990352 is about 597.2002448278.
The spelling of 212990352 in words is "two hundred twelve million, nine hundred ninety thousand, three hundred fifty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •