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52643984 = 24191571103
BaseRepresentation
bin1100100011010…
…0100010010000
310200001120222012
43020310202100
5101434101414
65120202052
71206316001
oct310644220
9120046865
1052643984
1127797228
1215769328
13aba29b3
146dc51a8
15494d33e
hex3234890

52643984 has 40 divisors (see below), whose sum is σ = 108147840. Its totient is φ = 24755328.

The previous prime is 52643971. The next prime is 52644013. The reversal of 52643984 is 48934625.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47177 + ... + 48279.

It is an arithmetic number, because the mean of its divisors is an integer number (2703696).

Almost surely, 252643984 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 52643984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54073920).

52643984 is an abundant number, since it is smaller than the sum of its proper divisors (55503856).

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

52643984 is a wasteful number, since it uses less digits than its factorization.

52643984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287 (or 1281 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 52643984 is about 7255.6174099797. The cubic root of 52643984 is about 374.7856173154.

The spelling of 52643984 in words is "fifty-two million, six hundred forty-three thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 16 19 38 76 152 157 304 314 628 1103 1256 2206 2512 2983 4412 5966 8824 11932 17648 20957 23864 41914 47728 83828 167656 173171 335312 346342 692684 1385368 2770736 3290249 6580498 13160996 26321992 52643984