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542456800 = 25524911381
BaseRepresentation
bin100000010101010…
…011101111100000
31101210201122211121
4200111103233200
52102332104200
6125454422024
716304543464
oct4025235740
91353648747
10542456800
11259225906
12131801914
13884cbc72
14520884a4
1532952e1a
hex20553be0

542456800 has 72 divisors (see below), whose sum is σ = 1327930632. Its totient is φ = 216384000.

The previous prime is 542456777. The next prime is 542456807. The reversal of 542456800 is 8654245.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542456807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392110 + ... + 393490.

It is an arithmetic number, because the mean of its divisors is an integer number (18443481).

Almost surely, 2542456800 is an apocalyptic number.

542456800 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 542456800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663965316).

542456800 is an abundant number, since it is smaller than the sum of its proper divisors (785473832).

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

542456800 is a wasteful number, since it uses less digits than its factorization.

542456800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892 (or 1879 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 542456800 is about 23290.7020074535. The cubic root of 542456800 is about 815.5583763101.

The spelling of 542456800 in words is "five hundred forty-two million, four hundred fifty-six thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 491 800 982 1381 1964 2455 2762 3928 4910 5524 6905 7856 9820 11048 12275 13810 15712 19640 22096 24550 27620 34525 39280 44192 49100 55240 69050 78560 98200 110480 138100 196400 220960 276200 392800 552400 678071 1104800 1356142 2712284 3390355 5424568 6780710 10849136 13561420 16951775 21698272 27122840 33903550 54245680 67807100 108491360 135614200 271228400 542456800