Base | Representation |
---|---|
bin | 1000101010111… |
… | …11100010001000 |
3 | 12001212201200222 |
4 | 10111133202020 |
5 | 122110234143 |
6 | 11115045212 |
7 | 1542206600 |
oct | 425374210 |
9 | 161781628 |
10 | 72743048 |
11 | 38074a24 |
12 | 20440808 |
13 | 120bc231 |
14 | 9937c00 |
15 | 65bd768 |
hex | 455f888 |
72743048 has 24 divisors (see below), whose sum is σ = 158662350. Its totient is φ = 31175424.
The previous prime is 72742931. The next prime is 72743053. The reversal of 72743048 is 84034727.
It can be written as a sum of positive squares in only one way, i.e., 67535524 + 5207524 = 8218^2 + 2282^2 .
It is a junction number, because it is equal to n+sod(n) for n = 72742999 and 72743017.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92393 + ... + 93176.
Almost surely, 272743048 is an apocalyptic number.
It is an amenable number.
72743048 is an abundant number, since it is smaller than the sum of its proper divisors (85919302).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72743048 is a wasteful number, since it uses less digits than its factorization.
72743048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 185589 (or 185578 counting only the distinct ones).
The product of its (nonzero) digits is 37632, while the sum is 35.
The square root of 72743048 is about 8528.9535114221. The cubic root of 72743048 is about 417.4429826399.
The spelling of 72743048 in words is "seventy-two million, seven hundred forty-three thousand, forty-eight".
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