Base | Representation |
---|---|
bin | 11101000101000… |
… | …000001100001001 |
3 | 1020222222101102201 |
4 | 131011000030021 |
5 | 1444342211021 |
6 | 120224200201 |
7 | 15042443266 |
oct | 3505001411 |
9 | 1228871381 |
10 | 487850761 |
11 | 230419552 |
12 | 117469061 |
13 | 7a0c01b8 |
14 | 48b1226d |
15 | 2cc68591 |
hex | 1d140309 |
487850761 has 2 divisors, whose sum is σ = 487850762. Its totient is φ = 487850760.
The previous prime is 487850747. The next prime is 487850767. The reversal of 487850761 is 167058784.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 487040761 + 810000 = 22069^2 + 900^2 .
It is a cyclic number.
It is not a de Polignac number, because 487850761 - 225 = 454296329 is a prime.
It is not a weakly prime, because it can be changed into another prime (487850767) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243925380 + 243925381.
It is an arithmetic number, because the mean of its divisors is an integer number (243925381).
Almost surely, 2487850761 is an apocalyptic number.
It is an amenable number.
487850761 is a deficient number, since it is larger than the sum of its proper divisors (1).
487850761 is an equidigital number, since it uses as much as digits as its factorization.
487850761 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 376320, while the sum is 46.
The square root of 487850761 is about 22087.3439100314. The cubic root of 487850761 is about 787.2191717570.
The spelling of 487850761 in words is "four hundred eighty-seven million, eight hundred fifty thousand, seven hundred sixty-one".
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