Base | Representation |
---|---|
bin | 11101000011110… |
… | …000001010011001 |
3 | 1020222100201210021 |
4 | 131003300022121 |
5 | 1444301213334 |
6 | 120213150441 |
7 | 15036606523 |
oct | 3503601231 |
9 | 1228321707 |
10 | 487522969 |
11 | 23021524a |
12 | 11732b421 |
13 | 7a006c3b |
14 | 48a68a13 |
15 | 2cc013b4 |
hex | 1d0f0299 |
487522969 has 2 divisors, whose sum is σ = 487522970. Its totient is φ = 487522968.
The previous prime is 487522967. The next prime is 487523017. The reversal of 487522969 is 969225784.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 479610000 + 7912969 = 21900^2 + 2813^2 .
It is a cyclic number.
It is not a de Polignac number, because 487522969 - 21 = 487522967 is a prime.
It is a super-2 number, since 2×4875229692 = 475357290605149922, which contains 22 as substring.
Together with 487522967, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (487522967) 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 as a sum of consecutive naturals, namely, 243761484 + 243761485.
It is an arithmetic number, because the mean of its divisors is an integer number (243761485).
Almost surely, 2487522969 is an apocalyptic number.
It is an amenable number.
487522969 is a deficient number, since it is larger than the sum of its proper divisors (1).
487522969 is an equidigital number, since it uses as much as digits as its factorization.
487522969 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 2177280, while the sum is 52.
The square root of 487522969 is about 22079.9223051169. The cubic root of 487522969 is about 787.0428186704.
The spelling of 487522969 in words is "four hundred eighty-seven million, five hundred twenty-two thousand, nine hundred sixty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •