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828250 = 2533313
BaseRepresentation
bin11001010001101011010
31120002010221
43022031122
5203001000
625430254
710016503
oct3121532
91502127
10828250
11516305
1233b38a
1322ccb7
14177baa
1511561a
hexca35a

828250 has 16 divisors (see below), whose sum is σ = 1550952. Its totient is φ = 331200.

The previous prime is 828239. The next prime is 828277. The reversal of 828250 is 52828.

828250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 447561 + 380689 = 669^2 + 617^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1407 + ... + 1906.

2828250 is an apocalyptic number.

828250 is a deficient number, since it is larger than the sum of its proper divisors (722702).

828250 is a wasteful number, since it uses less digits than its factorization.

828250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330 (or 3320 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 828250 is about 910.0824138505. The cubic root of 828250 is about 93.9118685056.

The spelling of 828250 in words is "eight hundred twenty-eight thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 3313 6626 16565 33130 82825 165650 414125 828250