Search a number
-
+
487994 = 2131372
BaseRepresentation
bin1110111001000111010
3220210101212
41313020322
5111103434
614243122
74101503
oct1671072
9823355
10487994
11303701
121b64a2
13141170
14c9baa
15998ce
hex7723a

487994 has 12 divisors (see below), whose sum is σ = 794094. Its totient is φ = 223584.

The previous prime is 487979. The next prime is 487997. The reversal of 487994 is 499784.

It can be written as a sum of positive squares in 3 ways, for example, as 375769 + 112225 = 613^2 + 335^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 487994.

It is not an unprimeable number, because it can be changed into a prime (487997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3494 + ... + 3630.

2487994 is an apocalyptic number.

487994 is a deficient number, since it is larger than the sum of its proper divisors (306100).

487994 is a wasteful number, since it uses less digits than its factorization.

487994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 152 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 487994 is about 698.5656733622. The cubic root of 487994 is about 78.7296209970.

The spelling of 487994 in words is "four hundred eighty-seven thousand, nine hundred ninety-four".

Divisors: 1 2 13 26 137 274 1781 3562 18769 37538 243997 487994