Base | Representation |
---|---|
bin | 1011100000000100… |
… | …1011001000011001 |
3 | 21222011022212122211 |
4 | 2320001023020121 |
5 | 22310323043411 |
6 | 1230203515121 |
7 | 136335514525 |
oct | 27001131031 |
9 | 7864285584 |
10 | 3087315481 |
11 | 13447888a8 |
12 | 721b28aa1 |
13 | 3a28065c3 |
14 | 214054d85 |
15 | 131090221 |
hex | b804b219 |
3087315481 has 4 divisors (see below), whose sum is σ = 3268922292. Its totient is φ = 2905708672.
The previous prime is 3087315467. The next prime is 3087315487. The reversal of 3087315481 is 1845137803.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 2064339225 + 1022976256 = 45435^2 + 31984^2 .
It is a cyclic number.
It is not a de Polignac number, because 3087315481 - 25 = 3087315449 is a prime.
It is a super-2 number, since 2×30873154812 = 19063033758444522722, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (3087315487) 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, 90803380 + ... + 90803413.
It is an arithmetic number, because the mean of its divisors is an integer number (817230573).
Almost surely, 23087315481 is an apocalyptic number.
It is an amenable number.
3087315481 is a deficient number, since it is larger than the sum of its proper divisors (181606811).
3087315481 is a wasteful number, since it uses less digits than its factorization.
3087315481 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 181606810.
The product of its (nonzero) digits is 80640, while the sum is 40.
The square root of 3087315481 is about 55563.6165219652. The cubic root of 3087315481 is about 1456.1082758772.
The spelling of 3087315481 in words is "three billion, eighty-seven million, three hundred fifteen thousand, four hundred eighty-one".
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