Base | Representation |
---|---|
bin | 11010101011010… |
… | …10010010111000 |
3 | 120121002022021220 |
4 | 31111222102320 |
5 | 424242011242 |
6 | 34112232040 |
7 | 5355054603 |
oct | 1525522270 |
9 | 517068256 |
10 | 223782072 |
11 | 105356868 |
12 | 62b3b620 |
13 | 37493037 |
14 | 21a1333a |
15 | 149a5bec |
hex | d56a4b8 |
223782072 has 16 divisors (see below), whose sum is σ = 559455240. Its totient is φ = 74594016.
The previous prime is 223782071. The next prime is 223782107. The reversal of 223782072 is 270287322.
223782072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×2237820722 = 100156831497226368, which contains 22 as substring.
It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (223782071) 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, 4662103 + ... + 4662150.
Almost surely, 2223782072 is an apocalyptic number.
It is an amenable number.
223782072 is an abundant number, since it is smaller than the sum of its proper divisors (335673168).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
223782072 is a wasteful number, since it uses less digits than its factorization.
223782072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9324262 (or 9324258 counting only the distinct ones).
The product of its (nonzero) digits is 18816, while the sum is 33.
The square root of 223782072 is about 14959.3473119652. The cubic root of 223782072 is about 607.1207787549.
The spelling of 223782072 in words is "two hundred twenty-three million, seven hundred eighty-two thousand, seventy-two".
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