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828200 = 235241101
BaseRepresentation
bin11001010001100101000
31120002002002
43022030220
5203000300
625430132
710016402
oct3121450
91502062
10828200
1151626a
1233b348
1322cc79
14177b72
151155d5
hexca328

828200 has 48 divisors (see below), whose sum is σ = 1992060. Its totient is φ = 320000.

The previous prime is 828199. The next prime is 828209. The reversal of 828200 is 2828.

It can be written as a sum of positive squares in 6 ways, for example, as 306916 + 521284 = 554^2 + 722^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 828200.

It is not an unprimeable number, because it can be changed into a prime (828209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8150 + ... + 8250.

2828200 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 828200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (996030).

828200 is an abundant number, since it is smaller than the sum of its proper divisors (1163860).

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

828200 is a wasteful number, since it uses less digits than its factorization.

828200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 828200 is about 910.0549433963. The cubic root of 828200 is about 93.9099787026.

It can be divided in two parts, 828 and 200, that multiplied together give a triangular number (165600 = T575).

The spelling of 828200 in words is "eight hundred twenty-eight thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 41 50 82 100 101 164 200 202 205 328 404 410 505 808 820 1010 1025 1640 2020 2050 2525 4040 4100 4141 5050 8200 8282 10100 16564 20200 20705 33128 41410 82820 103525 165640 207050 414100 828200