Search a number
-
+
216246233 = 7149207331
BaseRepresentation
bin11001110001110…
…10011111011001
3120001220110001202
430320322133121
5420324334413
633242523545
75234030330
oct1470723731
9501813052
10216246233
11101079aa5
12605065b5
1335a54c68
1420a10d17
1513eb7e58
hexce3a7d9

216246233 has 8 divisors (see below), whose sum is σ = 248798400. Its totient is φ = 184109040.

The previous prime is 216246223. The next prime is 216246257. The reversal of 216246233 is 332642612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216246233 - 212 = 216242137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216246196 and 216246205.

It is not an unprimeable number, because it can be changed into a prime (216246223) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 102623 + ... + 104708.

It is an arithmetic number, because the mean of its divisors is an integer number (31099800).

Almost surely, 2216246233 is an apocalyptic number.

It is an amenable number.

216246233 is a deficient number, since it is larger than the sum of its proper divisors (32552167).

216246233 is a wasteful number, since it uses less digits than its factorization.

216246233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207487.

The product of its digits is 10368, while the sum is 29.

The square root of 216246233 is about 14705.3130874524. The cubic root of 216246233 is about 600.2279069383.

Adding to 216246233 its reverse (332642612), we get a palindrome (548888845).

The spelling of 216246233 in words is "two hundred sixteen million, two hundred forty-six thousand, two hundred thirty-three".

Divisors: 1 7 149 1043 207331 1451317 30892319 216246233