Base | Representation |
---|---|
bin | 10111101011001110010… |
… | …11111110111010101000 |
3 | 2212202201211011101011011 |
4 | 23311213023332322220 |
5 | 101312001340412410 |
6 | 1421412455513304 |
7 | 112525536011611 |
oct | 13654713767250 |
9 | 2782654141134 |
10 | 813480013480 |
11 | 293aa4295402 |
12 | 1117a8988834 |
13 | 5b931926204 |
14 | 2b530762c08 |
15 | 1626196018a |
hex | bd672feea8 |
813480013480 has 16 divisors (see below), whose sum is σ = 1830330030420. Its totient is φ = 325392005376.
The previous prime is 813480013457. The next prime is 813480013481. The reversal of 813480013480 is 84310084318.
It can be written as a sum of positive squares in 2 ways, for example, as 734733551556 + 78746461924 = 857166^2 + 280618^2 .
It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 20337000337 = 813480013480 / (8 + 1 + 3 + 4 + 8 + 0 + 0 + 1 + 3 + 4 + 8 + 0).
It is not an unprimeable number, because it can be changed into a prime (813480013481) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10168500129 + ... + 10168500208.
Almost surely, 2813480013480 is an apocalyptic number.
It is an amenable number.
813480013480 is an abundant number, since it is smaller than the sum of its proper divisors (1016850016940).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
813480013480 is a wasteful number, since it uses less digits than its factorization.
813480013480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20337000348 (or 20337000344 counting only the distinct ones).
The product of its (nonzero) digits is 73728, while the sum is 40.
Adding to 813480013480 its reverse (84310084318), we get a palindrome (897790097798).
The spelling of 813480013480 in words is "eight hundred thirteen billion, four hundred eighty million, thirteen thousand, four hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.062 sec. • engine limits •