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275628 = 223103223
BaseRepresentation
bin1000011010010101100
3112000002110
41003102230
532310003
65524020
72225403
oct1032254
9460073
10275628
111790a1
12113610
13985c2
147263a
1556a03
hex434ac

275628 has 24 divisors (see below), whose sum is σ = 652288. Its totient is φ = 90576.

The previous prime is 275623. The next prime is 275641. The reversal of 275628 is 826572.

It is a junction number, because it is equal to n+sod(n) for n = 275595 and 275604.

It is not an unprimeable number, because it can be changed into a prime (275623) by changing a digit.

275628 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1125 + ... + 1347.

2275628 is an apocalyptic number.

It is an amenable number.

275628 is an abundant number, since it is smaller than the sum of its proper divisors (376660).

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

275628 is a wasteful number, since it uses less digits than its factorization.

275628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 331 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 275628 is about 525.0028571351. The cubic root of 275628 is about 65.0790360080.

It can be divided in two parts, 275 and 628, that added together give a triangular number (903 = T42).

The spelling of 275628 in words is "two hundred seventy-five thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 12 103 206 223 309 412 446 618 669 892 1236 1338 2676 22969 45938 68907 91876 137814 275628