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163230215 = 532646043
BaseRepresentation
bin10011011101010…
…11001000000111
3102101010221202112
421232223020013
5313241331330
624110331235
74021301561
oct1156531007
9371127675
10163230215
1184159305
12467b9b1b
1327a81b35
1417970331
15e4e4795
hex9bab207

163230215 has 4 divisors (see below), whose sum is σ = 195876264. Its totient is φ = 130584168.

The previous prime is 163230173. The next prime is 163230217. The reversal of 163230215 is 512032361.

163230215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163230215 - 28 = 163229959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163230217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16323017 + ... + 16323026.

It is an arithmetic number, because the mean of its divisors is an integer number (48969066).

Almost surely, 2163230215 is an apocalyptic number.

163230215 is a deficient number, since it is larger than the sum of its proper divisors (32646049).

163230215 is an equidigital number, since it uses as much as digits as its factorization.

163230215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32646048.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 163230215 is about 12776.1580688406. The cubic root of 163230215 is about 546.5126063409.

Adding to 163230215 its reverse (512032361), we get a palindrome (675262576).

The spelling of 163230215 in words is "one hundred sixty-three million, two hundred thirty thousand, two hundred fifteen".

Divisors: 1 5 32646043 163230215