Base | Representation |
---|---|
bin | 1001111001011… |
… | …11111010000011 |
3 | 12210020112212101 |
4 | 10330233322003 |
5 | 132224034411 |
6 | 12123411231 |
7 | 2025526564 |
oct | 474577203 |
9 | 183215771 |
10 | 83033731 |
11 | 42963520 |
12 | 23983b17 |
13 | 142831b1 |
14 | b05616b |
15 | 74528c1 |
hex | 4f2fe83 |
83033731 has 16 divisors (see below), whose sum is σ = 93139200. Its totient is φ = 73372320.
The previous prime is 83033681. The next prime is 83033737. The reversal of 83033731 is 13733038.
It is a cyclic number.
It is not a de Polignac number, because 83033731 - 213 = 83025539 is a prime.
It is a super-2 number, since 2×830337312 = 13789200967560722, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 83033731.
It is not an unprimeable number, because it can be changed into a prime (83033737) 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, 164826 + ... + 165328.
It is an arithmetic number, because the mean of its divisors is an integer number (5821200).
Almost surely, 283033731 is an apocalyptic number.
83033731 is a deficient number, since it is larger than the sum of its proper divisors (10105469).
83033731 is a wasteful number, since it uses less digits than its factorization.
83033731 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 906.
The product of its (nonzero) digits is 4536, while the sum is 28.
The square root of 83033731 is about 9112.2846202256. The cubic root of 83033731 is about 436.2661503095.
Adding to 83033731 its reverse (13733038), we get a palindrome (96766769).
The spelling of 83033731 in words is "eighty-three million, thirty-three thousand, seven hundred thirty-one".
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