Base | Representation |
---|---|
bin | 11100101001111… |
… | …111001001000101 |
3 | 1020111122120111202 |
4 | 130221333021011 |
5 | 1441034043311 |
6 | 115412312245 |
7 | 14625315446 |
oct | 3451771105 |
9 | 1214576452 |
10 | 480768581 |
11 | 227421607 |
12 | 115012685 |
13 | 787b0767 |
14 | 47bcb2cd |
15 | 2c319e3b |
hex | 1ca7f245 |
480768581 has 4 divisors (see below), whose sum is σ = 482195532. Its totient is φ = 479341632.
The previous prime is 480768539. The next prime is 480768623. The reversal of 480768581 is 185867084.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is an interprime number because it is at equal distance from previous prime (480768539) and next prime (480768623).
It can be written as a sum of positive squares in 2 ways, for example, as 344696356 + 136072225 = 18566^2 + 11665^2 .
It is a cyclic number.
It is not a de Polignac number, because 480768581 - 210 = 480767557 is a prime.
It is a super-3 number, since 3×4807685813 (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (480708581) 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, 712970 + ... + 713643.
It is an arithmetic number, because the mean of its divisors is an integer number (120548883).
Almost surely, 2480768581 is an apocalyptic number.
It is an amenable number.
480768581 is a deficient number, since it is larger than the sum of its proper divisors (1426951).
480768581 is a wasteful number, since it uses less digits than its factorization.
480768581 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1426950.
The product of its (nonzero) digits is 430080, while the sum is 47.
The square root of 480768581 is about 21926.4356656525. The cubic root of 480768581 is about 783.3912071722.
The spelling of 480768581 in words is "four hundred eighty million, seven hundred sixty-eight thousand, five hundred eighty-one".
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