Base | Representation |
---|---|
bin | 11101000010100… |
… | …001000110011011 |
3 | 1020221202021120021 |
4 | 131002201012123 |
5 | 1444210333011 |
6 | 120202211311 |
7 | 15034060426 |
oct | 3502410633 |
9 | 1227667507 |
10 | 487199131 |
11 | 230013a11 |
12 | 1171b3b37 |
13 | 79c22713 |
14 | 489c29bd |
15 | 2cb8a471 |
hex | 1d0a119b |
487199131 has 12 divisors (see below), whose sum is σ = 511736592. Its totient is φ = 463698000.
The previous prime is 487199129. The next prime is 487199137. The reversal of 487199131 is 131991784.
It is not a de Polignac number, because 487199131 - 21 = 487199129 is a prime.
It is a super-2 number, since 2×4871991312 = 474725986494310322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (487199137) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54466 + ... + 62776.
It is an arithmetic number, because the mean of its divisors is an integer number (42644716).
Almost surely, 2487199131 is an apocalyptic number.
487199131 is a deficient number, since it is larger than the sum of its proper divisors (24537461).
487199131 is an equidigital number, since it uses as much as digits as its factorization.
487199131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8434 (or 8403 counting only the distinct ones).
The product of its digits is 54432, while the sum is 43.
The square root of 487199131 is about 22072.5877730727. The cubic root of 487199131 is about 786.8685152065.
The spelling of 487199131 in words is "four hundred eighty-seven million, one hundred ninety-nine thousand, one hundred thirty-one".
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