Base | Representation |
---|---|
bin | 111011111011… |
… | …1011110000101 |
3 | 2012010102100102 |
4 | 1313313132011 |
5 | 31021003331 |
6 | 3041253445 |
7 | 531041216 |
oct | 167673605 |
9 | 65112312 |
10 | 31422341 |
11 | 16812085 |
12 | a634285 |
13 | 6682502 |
14 | 425d40d |
15 | 2b5a4cb |
hex | 1df7785 |
31422341 has 8 divisors (see below), whose sum is σ = 34418520. Its totient is φ = 28553728.
The previous prime is 31422323. The next prime is 31422343. The reversal of 31422341 is 14322413.
It can be written as a sum of positive squares in 4 ways, for example, as 940900 + 30481441 = 970^2 + 5521^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-31422341 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 (31422343) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31376 + ... + 32361.
It is an arithmetic number, because the mean of its divisors is an integer number (4302315).
Almost surely, 231422341 is an apocalyptic number.
It is an amenable number.
31422341 is a deficient number, since it is larger than the sum of its proper divisors (2996179).
31422341 is a wasteful number, since it uses less digits than its factorization.
31422341 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 63783.
The product of its digits is 576, while the sum is 20.
The square root of 31422341 is about 5605.5633971975. The cubic root of 31422341 is about 315.5582307673.
Adding to 31422341 its reverse (14322413), we get a palindrome (45744754).
The spelling of 31422341 in words is "thirty-one million, four hundred twenty-two thousand, three hundred forty-one".
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