Base | Representation |
---|---|
bin | 1100001111010111111… |
… | …0111011001100000000 |
3 | 202002210010222021022010 |
4 | 3003311332323030000 |
5 | 11421131021442423 |
6 | 240334224412520 |
7 | 21123031633113 |
oct | 3036576731400 |
9 | 662703867263 |
10 | 210285343488 |
11 | 811aa659a80 |
12 | 34908177140 |
13 | 16aa317523c |
14 | a26c0c057a |
15 | 570b3e8693 |
hex | 30f5fbb300 |
210285343488 has 144 divisors (see below), whose sum is σ = 616253049216. Its totient is φ = 63127019520.
The previous prime is 210285343481. The next prime is 210285343511. The reversal of 210285343488 is 884343582012.
It is a super-2 number, since 2×2102853434882 (a number of 23 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is not an unprimeable number, because it can be changed into a prime (210285343481) 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, 787620 + ... + 1020252.
It is an arithmetic number, because the mean of its divisors is an integer number (4279535064).
Almost surely, 2210285343488 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 210285343488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308126524608).
210285343488 is an abundant number, since it is smaller than the sum of its proper divisors (405967705728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
210285343488 is a wasteful number, since it uses less digits than its factorization.
210285343488 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 232770 (or 232756 counting only the distinct ones).
The product of its (nonzero) digits is 1474560, while the sum is 48.
The spelling of 210285343488 in words is "two hundred ten billion, two hundred eighty-five million, three hundred forty-three thousand, four hundred eighty-eight".
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