Base | Representation |
---|---|
bin | 1000101100000… |
… | …10000100011100 |
3 | 12002010220202020 |
4 | 10112002010130 |
5 | 122124301013 |
6 | 11122100140 |
7 | 1543336164 |
oct | 426020434 |
9 | 162126666 |
10 | 72884508 |
11 | 38161234 |
12 | 204aa650 |
13 | 1213b738 |
14 | 99735a4 |
15 | 65ea623 |
hex | 458211c |
72884508 has 48 divisors (see below), whose sum is σ = 183050784. Its totient is φ = 22487040.
The previous prime is 72884507. The next prime is 72884521. The reversal of 72884508 is 80548827.
It is a self number, because there is not a number n which added to its sum of digits gives 72884508.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72884501) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9516 + ... + 15372.
It is an arithmetic number, because the mean of its divisors is an integer number (3813558).
Almost surely, 272884508 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 72884508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91525392).
72884508 is an abundant number, since it is smaller than the sum of its proper divisors (110166276).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72884508 is a wasteful number, since it uses less digits than its factorization.
72884508 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5942 (or 5940 counting only the distinct ones).
The product of its (nonzero) digits is 143360, while the sum is 42.
The square root of 72884508 is about 8537.2424119267. The cubic root of 72884508 is about 417.7134013673.
The spelling of 72884508 in words is "seventy-two million, eight hundred eighty-four thousand, five hundred eight".
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