Search a number
-
+
284900316553 = 1841315472781
BaseRepresentation
bin1000010010101010110…
…00011101010110001001
31000020101012012122002001
410021111120131112021
514131433440112203
6334514214311001
726404044506536
oct4112530352611
91006335178061
10284900316553
11aa90988a676
1247270658461
1320b34750188
14db099add8d
157626c5891d
hex425561d589

284900316553 has 4 divisors (see below), whose sum is σ = 284915807748. Its totient is φ = 284884825360.

The previous prime is 284900316529. The next prime is 284900316619. The reversal of 284900316553 is 355613009482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 355613009482 = 2177806504741.

It can be written as a sum of positive squares in 2 ways, for example, as 122424411664 + 162475904889 = 349892^2 + 403083^2 .

It is a cyclic number.

It is not a de Polignac number, because 284900316553 - 213 = 284900308361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284900316523) 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, 7717978 + ... + 7754803.

It is an arithmetic number, because the mean of its divisors is an integer number (71228951937).

Almost surely, 2284900316553 is an apocalyptic number.

It is an amenable number.

284900316553 is a deficient number, since it is larger than the sum of its proper divisors (15491195).

284900316553 is a wasteful number, since it uses less digits than its factorization.

284900316553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15491194.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 284900316553 in words is "two hundred eighty-four billion, nine hundred million, three hundred sixteen thousand, five hundred fifty-three".

Divisors: 1 18413 15472781 284900316553