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487424 = 212717
BaseRepresentation
bin1110111000000000000
3220202121202
41313000000
5111044144
614240332
74100030
oct1670000
9822552
10487424
11303233
121b60a8
13140b22
14c98c0
159964e
hex77000

487424 has 52 divisors (see below), whose sum is σ = 1179504. Its totient is φ = 196608.

The previous prime is 487423. The next prime is 487427. The reversal of 487424 is 424784.

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28664 + ... + 28680.

487424 is a Friedman number, since it can be written as 7*(4^8+4^(4+2)), using all its digits and the basic arithmetic operations.

2487424 is an apocalyptic number.

487424 is a droll number since its even prime factors and its odd prime factors have the same sum.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 487424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589752).

487424 is an abundant number, since it is smaller than the sum of its proper divisors (692080).

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

487424 is an equidigital number, since it uses as much as digits as its factorization.

487424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48 (or 26 counting only the distinct ones).

The product of its digits is 7168, while the sum is 29.

The square root of 487424 is about 698.1575753367. The cubic root of 487424 is about 78.6989557513.

The spelling of 487424 in words is "four hundred eighty-seven thousand, four hundred twenty-four".

Divisors: 1 2 4 7 8 14 16 17 28 32 34 56 64 68 112 119 128 136 224 238 256 272 448 476 512 544 896 952 1024 1088 1792 1904 2048 2176 3584 3808 4096 4352 7168 7616 8704 14336 15232 17408 28672 30464 34816 60928 69632 121856 243712 487424