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52800 = 2635211
BaseRepresentation
bin1100111001000000
32200102120
430321000
53142200
61044240
7306636
oct147100
980376
1052800
1136740
1226680
131b057
1415356
15109a0
hexce40

52800 has 84 divisors (see below), whose sum is σ = 188976. Its totient is φ = 12800.

The previous prime is 52783. The next prime is 52807. The reversal of 52800 is 825.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 52800.

It is not an unprimeable number, because it can be changed into a prime (52807) by changing a digit.

52800 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 11 ways as a sum of consecutive naturals, for example, 4795 + ... + 4805.

252800 is an apocalyptic number.

52800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94488).

52800 is an abundant number, since it is smaller than the sum of its proper divisors (136176).

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

52800 is a wasteful number, since it uses less digits than its factorization.

52800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36 (or 21 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 52800 is about 229.7825058615. The cubic root of 52800 is about 37.5155491073.

Multiplying 52800 by its reverse (825), we get a square (43560000 = 66002).

52800 divided by its reverse (825) gives a 6-th power (64 = 26).

The spelling of 52800 in words is "fifty-two thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 25 30 32 33 40 44 48 50 55 60 64 66 75 80 88 96 100 110 120 132 150 160 165 176 192 200 220 240 264 275 300 320 330 352 400 440 480 528 550 600 660 704 800 825 880 960 1056 1100 1200 1320 1600 1650 1760 2112 2200 2400 2640 3300 3520 4400 4800 5280 6600 8800 10560 13200 17600 26400 52800