Base | Representation |
---|---|
bin | 111011100100… |
… | …0100110000101 |
3 | 2011202122222022 |
4 | 1313020212011 |
5 | 30443332331 |
6 | 3033212525 |
7 | 526311362 |
oct | 167104605 |
9 | 64678868 |
10 | 31230341 |
11 | 166a08aa |
12 | a561145 |
13 | 6615cbc |
14 | 420d469 |
15 | 2b1d67b |
hex | 1dc8985 |
31230341 has 4 divisors (see below), whose sum is σ = 31956672. Its totient is φ = 30504012.
The previous prime is 31230337. The next prime is 31230371. The reversal of 31230341 is 14303213.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 31230341 - 22 = 31230337 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31230371) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363101 + ... + 363186.
It is an arithmetic number, because the mean of its divisors is an integer number (7989168).
Almost surely, 231230341 is an apocalyptic number.
It is an amenable number.
31230341 is a deficient number, since it is larger than the sum of its proper divisors (726331).
31230341 is an equidigital number, since it uses as much as digits as its factorization.
31230341 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 726330.
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 31230341 is about 5588.4113127078. The cubic root of 31230341 is about 314.9141985173.
Adding to 31230341 its reverse (14303213), we get a palindrome (45533554).
The spelling of 31230341 in words is "thirty-one million, two hundred thirty thousand, three hundred forty-one".
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