Base | Representation |
---|---|
bin | 11010011001100… |
… | …01000001000000 |
3 | 120102200211201010 |
4 | 31030301001000 |
5 | 423142402204 |
6 | 33550240520 |
7 | 5326203465 |
oct | 1514610100 |
9 | 512624633 |
10 | 221450304 |
11 | 104003989 |
12 | 621b6140 |
13 | 36b578aa |
14 | 215a766c |
15 | 14694d89 |
hex | d331040 |
221450304 has 56 divisors (see below), whose sum is σ = 588617568. Its totient is φ = 73477120.
The previous prime is 221450297. The next prime is 221450311. The reversal of 221450304 is 403054122.
It is an interprime number because it is at equal distance from previous prime (221450297) and next prime (221450311).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41044 + ... + 46124.
It is an arithmetic number, because the mean of its divisors is an integer number (10511028).
Almost surely, 2221450304 is an apocalyptic number.
221450304 is a gapful number since it is divisible by the number (24) 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 221450304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294308784).
221450304 is an abundant number, since it is smaller than the sum of its proper divisors (367167264).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
221450304 is a wasteful number, since it uses less digits than its factorization.
221450304 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5323 (or 5313 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 21.
The square root of 221450304 is about 14881.2064027081. The cubic root of 221450304 is about 605.0047163988.
The spelling of 221450304 in words is "two hundred twenty-one million, four hundred fifty thousand, three hundred four".
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