Base | Representation |
---|---|
bin | 1000101011101… |
… | …00110010101100 |
3 | 12002001011011000 |
4 | 10111310302230 |
5 | 122121030444 |
6 | 11121000300 |
7 | 1543021503 |
oct | 425646254 |
9 | 162034130 |
10 | 72830124 |
11 | 38124394 |
12 | 20483090 |
13 | 1211ca63 |
14 | 995b83a |
15 | 65d9469 |
hex | 4574cac |
72830124 has 48 divisors (see below), whose sum is σ = 190965600. Its totient is φ = 24000768.
The previous prime is 72830123. The next prime is 72830141. The reversal of 72830124 is 42103827.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (72830123) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5824 + ... + 13400.
It is an arithmetic number, because the mean of its divisors is an integer number (3978450).
Almost surely, 272830124 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 72830124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95482800).
72830124 is an abundant number, since it is smaller than the sum of its proper divisors (118135476).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72830124 is a wasteful number, since it uses less digits than its factorization.
72830124 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7679 (or 7671 counting only the distinct ones).
The product of its (nonzero) digits is 2688, while the sum is 27.
The square root of 72830124 is about 8534.0567141307. The cubic root of 72830124 is about 417.6094808919.
The spelling of 72830124 in words is "seventy-two million, eight hundred thirty thousand, one hundred twenty-four".
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