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216016230 = 23523476661
BaseRepresentation
bin11001110000000…
…10010101100110
3120001110202120010
430320002111212
5420300004410
633233551050
75232051633
oct1470022546
9501422503
10216016230
11100a32211
1260415486
13359a4371
142099118a
1513e6ec20
hexce02566

216016230 has 64 divisors (see below), whose sum is σ = 552572928. Its totient is φ = 53919360.

The previous prime is 216016223. The next prime is 216016231. The reversal of 216016230 is 32610612.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 216016197 and 216016206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216016231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29100 + ... + 35760.

It is an arithmetic number, because the mean of its divisors is an integer number (8633952).

Almost surely, 2216016230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216016230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276286464).

216016230 is an abundant number, since it is smaller than the sum of its proper divisors (336556698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216016230 is a wasteful number, since it uses less digits than its factorization.

216016230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6741.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 216016230 is about 14697.4906021402. The cubic root of 216016230 is about 600.0150274014.

Adding to 216016230 its reverse (32610612), we get a palindrome (248626842).

The spelling of 216016230 in words is "two hundred sixteen million, sixteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 47 69 94 115 138 141 230 235 282 345 470 690 705 1081 1410 2162 3243 5405 6486 6661 10810 13322 16215 19983 32430 33305 39966 66610 99915 153203 199830 306406 313067 459609 626134 766015 919218 939201 1532030 1565335 1878402 2298045 3130670 4596090 4696005 7200541 9392010 14401082 21601623 36002705 43203246 72005410 108008115 216016230