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1828674169 = 724121492
BaseRepresentation
bin110110011111111…
…0101101001111001
311201102222021100221
41230333311221321
512221120033134
6501242500041
763213321400
oct15477655171
94642867327
101828674169
11859269a73
12430504621
13231b1c72a
14134c1c637
15aa81e5b4
hex6cff5a79

1828674169 has 27 divisors (see below), whose sum is σ = 2195114061. Its totient is φ = 1518941760.

The previous prime is 1828674161. The next prime is 1828674187. The reversal of 1828674169 is 9614768281.

The square root of 1828674169 is 42763.

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 1295064169 + 533610000 = 35987^2 + 23100^2 .

It is not a de Polignac number, because 1828674169 - 23 = 1828674161 is a prime.

It is a super-2 number, since 2×18286741692 = 6688098432735681122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (52) 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 (1828674161) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 12272907 + ... + 12273055.

Almost surely, 21828674169 is an apocalyptic number.

1828674169 is the 42763-rd square number.

1828674169 is the 21382-nd centered octagonal number.

It is an amenable number.

1828674169 is a deficient number, since it is larger than the sum of its proper divisors (366439892).

1828674169 is an frugal number, since it uses more digits than its factorization.

1828674169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 197 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 52.

The cubic root of 1828674169 is about 1222.8657367885.

The spelling of 1828674169 in words is "one billion, eight hundred twenty-eight million, six hundred seventy-four thousand, one hundred sixty-nine".

Divisors: 1 7 41 49 149 287 1043 1681 2009 6109 7301 11767 22201 42763 82369 155407 250469 299341 910241 1087849 1753283 6371687 12272981 37319881 44601809 261239167 1828674169