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64484 = 227347
BaseRepresentation
bin1111101111100100
310021110022
433233210
54030414
61214312
7356000
oct175744
9107408
1064484
11444a2
1231398
1323474
1419700
151418e
hexfbe4

64484 has 24 divisors (see below), whose sum is σ = 134400. Its totient is φ = 27048.

The previous prime is 64483. The next prime is 64489. The reversal of 64484 is 48446.

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 7 ways as a sum of consecutive naturals, for example, 1349 + ... + 1395.

It is an arithmetic number, because the mean of its divisors is an integer number (5600).

264484 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67200).

64484 is an abundant number, since it is smaller than the sum of its proper divisors (69916).

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

64484 is a wasteful number, since it uses less digits than its factorization.

64484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 56 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 64484 is about 253.9370000610. The cubic root of 64484 is about 40.1005802119.

It can be divided in two parts, 64 and 484, that multiplied together give a square (30976 = 1762).

The spelling of 64484 in words is "sixty-four thousand, four hundred eighty-four".

Divisors: 1 2 4 7 14 28 47 49 94 98 188 196 329 343 658 686 1316 1372 2303 4606 9212 16121 32242 64484