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270828 = 22327523
BaseRepresentation
bin1000010000111101100
3111202111200
41002013230
532131303
65445500
72205405
oct1020754
9452450
10270828
11175528
12110890
139636c
14709ac
15553a3
hex421ec

270828 has 18 divisors (see below), whose sum is σ = 684684. Its totient is φ = 90264.

The previous prime is 270821. The next prime is 270833. The reversal of 270828 is 828072.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (270821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3726 + ... + 3797.

It is an arithmetic number, because the mean of its divisors is an integer number (38038).

2270828 is an apocalyptic number.

It is an amenable number.

270828 is an abundant number, since it is smaller than the sum of its proper divisors (413856).

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

270828 is a wasteful number, since it uses less digits than its factorization.

270828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7533 (or 7528 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 270828 is about 520.4113757404. The cubic root of 270828 is about 64.6990426087.

The spelling of 270828 in words is "two hundred seventy thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 7523 15046 22569 30092 45138 67707 90276 135414 270828