Base | Representation |
---|---|
bin | 11111101001101… |
… | …001111101101101 |
3 | 1101000012021120010 |
4 | 133221221331231 |
5 | 2041414412420 |
6 | 124405243433 |
7 | 16105353162 |
oct | 3751517555 |
9 | 1330167503 |
10 | 531013485 |
11 | 25281a322 |
12 | 129a03579 |
13 | 86023482 |
14 | 5074a069 |
15 | 319424e0 |
hex | 1fa69f6d |
531013485 has 16 divisors (see below), whose sum is σ = 849965760. Its totient is φ = 283092480.
The previous prime is 531013471. The next prime is 531013487. The reversal of 531013485 is 584310135.
It is not a de Polignac number, because 531013485 - 26 = 531013421 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (531013487) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41950 + ... + 53120.
It is an arithmetic number, because the mean of its divisors is an integer number (53122860).
Almost surely, 2531013485 is an apocalyptic number.
It is an amenable number.
531013485 is a deficient number, since it is larger than the sum of its proper divisors (318952275).
531013485 is a wasteful number, since it uses less digits than its factorization.
531013485 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14348.
The product of its (nonzero) digits is 7200, while the sum is 30.
The square root of 531013485 is about 23043.7298413256. The cubic root of 531013485 is about 809.7827416102.
The spelling of 531013485 in words is "five hundred thirty-one million, thirteen thousand, four hundred eighty-five".
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