Base | Representation |
---|---|
bin | 11100101110000… |
… | …010011111010101 |
3 | 1020120122112200202 |
4 | 130232002133111 |
5 | 1441322041434 |
6 | 115451150245 |
7 | 14640331502 |
oct | 3456023725 |
9 | 1216575622 |
10 | 481830869 |
11 | 227a87733 |
12 | 115445385 |
13 | 78a93130 |
14 | 47dc64a9 |
15 | 2c479a7e |
hex | 1cb827d5 |
481830869 has 16 divisors (see below), whose sum is σ = 524959344. Its totient is φ = 439603200.
The previous prime is 481830863. The next prime is 481830871. The reversal of 481830869 is 968038184.
It can be written as a sum of positive squares in 8 ways, for example, as 149206225 + 332624644 = 12215^2 + 18238^2 .
It is a cyclic number.
It is not a de Polignac number, because 481830869 - 212 = 481826773 is a prime.
It is a super-2 number, since 2×4818308692 = 464321972642590322, which contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (481830863) 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, 453599 + ... + 454659.
It is an arithmetic number, because the mean of its divisors is an integer number (32809959).
Almost surely, 2481830869 is an apocalyptic number.
It is an amenable number.
481830869 is a deficient number, since it is larger than the sum of its proper divisors (43128475).
481830869 is a wasteful number, since it uses less digits than its factorization.
481830869 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1448.
The product of its (nonzero) digits is 331776, while the sum is 47.
The square root of 481830869 is about 21950.6462091666. The cubic root of 481830869 is about 783.9677665536.
The spelling of 481830869 in words is "four hundred eighty-one million, eight hundred thirty thousand, eight hundred sixty-nine".
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