Base | Representation |
---|---|
bin | 11101000110100… |
… | …010110110101011 |
3 | 1021000201220210111 |
4 | 131012202312223 |
5 | 1444443124031 |
6 | 120240555151 |
7 | 15046045435 |
oct | 3506426653 |
9 | 1230656714 |
10 | 488254891 |
11 | 230675143 |
12 | 117622ab7 |
13 | 7a202127 |
14 | 48bb9655 |
15 | 2cce81b1 |
hex | 1d1a2dab |
488254891 has 2 divisors, whose sum is σ = 488254892. Its totient is φ = 488254890.
The previous prime is 488254889. The next prime is 488254901. The reversal of 488254891 is 198452884.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 488254891 - 21 = 488254889 is a prime.
Together with 488254889, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (488254831) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244127445 + 244127446.
It is an arithmetic number, because the mean of its divisors is an integer number (244127446).
Almost surely, 2488254891 is an apocalyptic number.
488254891 is a deficient number, since it is larger than the sum of its proper divisors (1).
488254891 is an equidigital number, since it uses as much as digits as its factorization.
488254891 is an evil number, because the sum of its binary digits is even.
The product of its digits is 737280, while the sum is 49.
The square root of 488254891 is about 22096.4904679454. The cubic root of 488254891 is about 787.4364862188.
The spelling of 488254891 in words is "four hundred eighty-eight million, two hundred fifty-four thousand, eight hundred ninety-one".
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