Base | Representation |
---|---|
bin | 11100111010111101… |
… | …000000000111001001 |
3 | 2222011012021120020101 |
4 | 130322331000013021 |
5 | 1002044240401331 |
6 | 22133235325401 |
7 | 2146354202062 |
oct | 347275000711 |
9 | 88135246211 |
10 | 31053840841 |
11 | 121960a1281 |
12 | 6027a50861 |
13 | 2c0b80396a |
14 | 17083ad569 |
15 | c1b3e3061 |
hex | 73af401c9 |
31053840841 has 3 divisors (see below), whose sum is σ = 31054017063. Its totient is φ = 31053664620.
The previous prime is 31053840773. The next prime is 31053840877. The reversal of 31053840841 is 14804835013.
The square root of 31053840841 is 176221.
It is a perfect power (a square), and thus also a powerful number.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It can be written as a sum of positive squares in only one way, i.e., 14828176441 + 16225664400 = 121771^2 + 127380^2 .
It is not a de Polignac number, because 31053840841 - 217 = 31053709769 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 31053840841.
It is not an unprimeable number, because it can be changed into a prime (31053840341) 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 2 ways as a sum of consecutive naturals, for example, 88111 + ... + 264331.
It is an arithmetic number, because the mean of its divisors is an integer number (10351339021).
Almost surely, 231053840841 is an apocalyptic number.
31053840841 is the 176221-st square number.
31053840841 is the 88111-st centered octagonal number.
It is an amenable number.
31053840841 is a deficient number, since it is larger than the sum of its proper divisors (176222).
31053840841 is an frugal number, since it uses more digits than its factorization.
31053840841 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 352442 (or 176221 counting only the distinct ones).
The product of its (nonzero) digits is 46080, while the sum is 37.
The spelling of 31053840841 in words is "thirty-one billion, fifty-three million, eight hundred forty thousand, eight hundred forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •