Base | Representation |
---|---|
bin | 1000100111001… |
… | …00010010101000 |
3 | 12000221002020200 |
4 | 10103210102220 |
5 | 121443110443 |
6 | 11100152200 |
7 | 1535005065 |
oct | 423442250 |
9 | 160832220 |
10 | 72238248 |
11 | 3785a735 |
12 | 20238660 |
13 | 11c73534 |
14 | 9845c6c |
15 | 651ddd3 |
hex | 44e44a8 |
72238248 has 48 divisors (see below), whose sum is σ = 199817280. Its totient is φ = 23565984.
The previous prime is 72238241. The next prime is 72238259. The reversal of 72238248 is 84283227.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (72238241) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7290 + ... + 14057.
It is an arithmetic number, because the mean of its divisors is an integer number (4162860).
Almost surely, 272238248 is an apocalyptic number.
It is an amenable number.
72238248 is an abundant number, since it is smaller than the sum of its proper divisors (127579032).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72238248 is a wasteful number, since it uses less digits than its factorization.
72238248 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21406 (or 21399 counting only the distinct ones).
The product of its digits is 43008, while the sum is 36.
The square root of 72238248 is about 8499.3086777690. The cubic root of 72238248 is about 416.4751259004.
The spelling of 72238248 in words is "seventy-two million, two hundred thirty-eight thousand, two hundred forty-eight".
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