Search a number
-
+
216233148 = 22319948391
BaseRepresentation
bin11001110001101…
…11010010111100
3120001212210010010
430320313102330
5420323430043
633242343220
75233644225
oct1470672274
9501783103
10216233148
1110107018a
12604bab10
1335a4c011
1420a0a24c
1513eb4133
hexce374bc

216233148 has 24 divisors (see below), whose sum is σ = 531099520. Its totient is φ = 68284080.

The previous prime is 216233141. The next prime is 216233159. The reversal of 216233148 is 841332612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216233141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473968 + ... + 474423.

Almost surely, 2216233148 is an apocalyptic number.

It is an amenable number.

216233148 is an abundant number, since it is smaller than the sum of its proper divisors (314866372).

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

216233148 is a wasteful number, since it uses less digits than its factorization.

216233148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948417 (or 948415 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 216233148 is about 14704.8681734996. The cubic root of 216233148 is about 600.2158001523.

The spelling of 216233148 in words is "two hundred sixteen million, two hundred thirty-three thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 948391 1896782 2845173 3793564 5690346 11380692 18019429 36038858 54058287 72077716 108116574 216233148