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540800 = 2752132
BaseRepresentation
bin10000100000010000000
31000110211122
42010002000
5114301200
615331412
74411451
oct2040200
91013748
10540800
1133a347
12220b68
1315c200
14101128
15aa385
hex84080

540800 has 72 divisors (see below), whose sum is σ = 1446615. Its totient is φ = 199680.

The previous prime is 540781. The next prime is 540803. The reversal of 540800 is 8045.

540800 = 143 + 153 + ... + 383.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 33856 + 506944 = 184^2 + 712^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=520.

It is not an unprimeable number, because it can be changed into a prime (540803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 41594 + ... + 41606.

2540800 is an apocalyptic number.

540800 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 540800

540800 is an abundant number, since it is smaller than the sum of its proper divisors (905815).

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

540800 is a wasteful number, since it uses less digits than its factorization.

540800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50 (or 20 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 540800 is about 735.3910524340. The cubic root of 540800 is about 81.4727222499.

Adding to 540800 its reverse (8045), we get a palindrome (548845).

The spelling of 540800 in words is "five hundred forty thousand, eight hundred".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 64 65 80 100 104 128 130 160 169 200 208 260 320 325 338 400 416 520 640 650 676 800 832 845 1040 1300 1352 1600 1664 1690 2080 2600 2704 3200 3380 4160 4225 5200 5408 6760 8320 8450 10400 10816 13520 16900 20800 21632 27040 33800 41600 54080 67600 108160 135200 270400 540800