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406828900 = 225220172
BaseRepresentation
bin11000001111111…
…011011101100100
31001100112001100001
4120033323131210
51313122011100
6104211431044
713036663042
oct3017733544
91040461301
10406828900
1119970a635
12b42b5484
136639297a
143c061392
1525ab1d6a
hex183fb764

406828900 has 27 divisors (see below), whose sum is σ = 883256619. Its totient is φ = 162650880.

The previous prime is 406828883. The next prime is 406828943. The reversal of 406828900 is 9828604.

The square root of 406828900 is 20170.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 22982436 + 383846464 = 4794^2 + 19592^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 406828900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 200692 + ... + 202708.

Almost surely, 2406828900 is an apocalyptic number.

406828900 is the 20170-th square number.

It is an amenable number.

406828900 is an abundant number, since it is smaller than the sum of its proper divisors (476427719).

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

406828900 is an equidigital number, since it uses as much as digits as its factorization.

406828900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048 (or 2024 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The cubic root of 406828900 is about 740.9756427444.

The spelling of 406828900 in words is "four hundred six million, eight hundred twenty-eight thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 2017 4034 8068 10085 20170 40340 50425 100850 201700 4068289 8136578 16273156 20341445 40682890 81365780 101707225 203414450 406828900