Base | Representation |
---|---|
bin | 1101100100011110… |
… | …00010110010110101 |
3 | 200210201111022120012 |
4 | 12302033002302311 |
5 | 104410011132344 |
6 | 3202524150005 |
7 | 345351435341 |
oct | 66217026265 |
9 | 20721438505 |
10 | 7285255349 |
11 | 30a9378199 |
12 | 14b3998305 |
13 | 8c14406a8 |
14 | 4d17b2621 |
15 | 2c98b429e |
hex | 1b23c2cb5 |
7285255349 has 8 divisors (see below), whose sum is σ = 7458134112. Its totient is φ = 7112533680.
The previous prime is 7285255333. The next prime is 7285255357. The reversal of 7285255349 is 9435525827.
It is a happy number.
7285255349 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 7285255349 - 24 = 7285255333 is a prime.
It is a super-2 number, since 2×72852553492 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 7285255297 and 7285255306.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7285255049) 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, 57362 + ... + 133644.
It is an arithmetic number, because the mean of its divisors is an integer number (932266764).
Almost surely, 27285255349 is an apocalyptic number.
It is an amenable number.
7285255349 is a deficient number, since it is larger than the sum of its proper divisors (172878763).
7285255349 is a wasteful number, since it uses less digits than its factorization.
7285255349 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 78547.
The product of its digits is 3024000, while the sum is 50.
The square root of 7285255349 is about 85353.7072949969. The cubic root of 7285255349 is about 1938.5704696230.
The spelling of 7285255349 in words is "seven billion, two hundred eighty-five million, two hundred fifty-five thousand, three hundred forty-nine".
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