Base | Representation |
---|---|
bin | 1011110111100… |
… | …1010111101001 |
3 | 10110200002121011 |
4 | 2331321113221 |
5 | 100220431301 |
6 | 4534543521 |
7 | 1143060532 |
oct | 275712751 |
9 | 113602534 |
10 | 49780201 |
11 | 26110669 |
12 | 14807ba1 |
13 | a40c353 |
14 | 687b689 |
15 | 4584a51 |
hex | 2f795e9 |
49780201 has 4 divisors (see below), whose sum is σ = 49856400. Its totient is φ = 49704004.
The previous prime is 49780189. The next prime is 49780219. The reversal of 49780201 is 10208794.
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, and also an emirpimes, since its reverse is a distinct semiprime: 10208794 = 2 ⋅5104397.
It is a cyclic number.
It is not a de Polignac number, because 49780201 - 221 = 47683049 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (49780001) 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 3 ways as a sum of consecutive naturals, for example, 37111 + ... + 38428.
It is an arithmetic number, because the mean of its divisors is an integer number (12464100).
Almost surely, 249780201 is an apocalyptic number.
It is an amenable number.
49780201 is a deficient number, since it is larger than the sum of its proper divisors (76199).
49780201 is an equidigital number, since it uses as much as digits as its factorization.
49780201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 76198.
The product of its (nonzero) digits is 4032, while the sum is 31.
The square root of 49780201 is about 7055.5085571488. The cubic root of 49780201 is about 367.8625259382.
Adding to 49780201 its reverse (10208794), we get a palindrome (59988995).
The spelling of 49780201 in words is "forty-nine million, seven hundred eighty thousand, two hundred one".
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