Base | Representation |
---|---|
bin | 1001100011111… |
… | …00011100011101 |
3 | 12120220122202222 |
4 | 10301330130131 |
5 | 131012422001 |
6 | 11542555125 |
7 | 1662462422 |
oct | 461743435 |
9 | 176818688 |
10 | 80201501 |
11 | 412a9636 |
12 | 22a38aa5 |
13 | 13801013 |
14 | a919d49 |
15 | 709361b |
hex | 4c7c71d |
80201501 has 6 divisors (see below), whose sum is σ = 83016990. Its totient is φ = 77389368.
The previous prime is 80201497. The next prime is 80201509. The reversal of 80201501 is 10510208.
It can be written as a sum of positive squares in only one way, i.e., 69139225 + 11062276 = 8315^2 + 3326^2 .
It is not a de Polignac number, because 80201501 - 22 = 80201497 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 80201501.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80201509) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47396 + ... + 49058.
It is an arithmetic number, because the mean of its divisors is an integer number (13836165).
Almost surely, 280201501 is an apocalyptic number.
It is an amenable number.
80201501 is a deficient number, since it is larger than the sum of its proper divisors (2815489).
80201501 is an frugal number, since it uses more digits than its factorization.
80201501 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3355 (or 1692 counting only the distinct ones).
The product of its (nonzero) digits is 80, while the sum is 17.
The square root of 80201501 is about 8955.5290742647. The cubic root of 80201501 is about 431.2484019825.
Adding to 80201501 its reverse (10510208), we get a palindrome (90711709).
The spelling of 80201501 in words is "eighty million, two hundred one thousand, five hundred one".
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