Base | Representation |
---|---|
bin | 11001011011011… |
… | …10111110011000 |
3 | 112212101112211100 |
4 | 30231232332120 |
5 | 414102043410 |
6 | 33100031400 |
7 | 5200103010 |
oct | 1455567630 |
9 | 485345740 |
10 | 213315480 |
11 | aa458094 |
12 | 5b532560 |
13 | 35269ca1 |
14 | 2048ac40 |
15 | 13ad98c0 |
hex | cb6ef98 |
213315480 has 96 divisors (see below), whose sum is σ = 792324000. Its totient is φ = 48757248.
The previous prime is 213315437. The next prime is 213315491. The reversal of 213315480 is 84513312.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39805 + ... + 44844.
It is an arithmetic number, because the mean of its divisors is an integer number (8253375).
Almost surely, 2213315480 is an apocalyptic number.
213315480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
213315480 is an abundant number, since it is smaller than the sum of its proper divisors (579008520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
213315480 is a wasteful number, since it uses less digits than its factorization.
213315480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 84673 (or 84666 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 27.
The square root of 213315480 is about 14605.3236869301. The cubic root of 213315480 is about 597.5039640733.
Adding to 213315480 its reverse (84513312), we get a palindrome (297828792).
The spelling of 213315480 in words is "two hundred thirteen million, three hundred fifteen thousand, four hundred eighty".
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