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64488 = 2332687
BaseRepresentation
bin1111101111101000
310021110110
433233220
54030423
61214320
7356004
oct175750
9107413
1064488
11444a6
12313a0
1323478
1419704
1514193
hexfbe8

64488 has 16 divisors (see below), whose sum is σ = 161280. Its totient is φ = 21488.

The previous prime is 64483. The next prime is 64489. The reversal of 64488 is 88446.

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

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (64483) 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 3 ways as a sum of consecutive naturals, for example, 1320 + ... + 1367.

It is an arithmetic number, because the mean of its divisors is an integer number (10080).

264488 is an apocalyptic number.

It is an amenable number.

64488 is an abundant number, since it is smaller than the sum of its proper divisors (96792).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80640).

64488 is a wasteful number, since it uses less digits than its factorization.

64488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2696 (or 2692 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 64488 is about 253.9448759081. The cubic root of 64488 is about 40.1014093530.

The spelling of 64488 in words is "sixty-four thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 2687 5374 8061 10748 16122 21496 32244 64488