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487144 = 2378699
BaseRepresentation
bin1110110111011101000
3220202020101
41312323220
5111042034
614235144
74066150
oct1667350
9822211
10487144
11302aa9
121b5ab4
13140968
14c9760
1599514
hex76ee8

487144 has 16 divisors (see below), whose sum is σ = 1044000. Its totient is φ = 208752.

The previous prime is 487133. The next prime is 487177. The reversal of 487144 is 441784.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 9 and base 14.

It is an unprimeable number.

487144 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4294 + ... + 4405.

It is an arithmetic number, because the mean of its divisors is an integer number (65250).

2487144 is an apocalyptic number.

It is an amenable number.

487144 is an abundant number, since it is smaller than the sum of its proper divisors (556856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

487144 is a wasteful number, since it uses less digits than its factorization.

487144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8712 (or 8708 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 487144 is about 697.9570187340. The cubic root of 487144 is about 78.6838833651.

The spelling of 487144 in words is "four hundred eighty-seven thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 28 56 8699 17398 34796 60893 69592 121786 243572 487144