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282080105 = 5541104281
BaseRepresentation
bin10000110100000…
…011001101101001
3201122210011011022
4100310003031221
51034203030410
643553542225
76663432656
oct2064031551
9648704138
10282080105
11135254a5a
127a574975
1346595408
142966ac2d
1519b6e455
hex10d03369

282080105 has 8 divisors (see below), whose sum is σ = 339125064. Its totient is φ = 225244800.

The previous prime is 282080101. The next prime is 282080111. The reversal of 282080105 is 501080282.

It can be written as a sum of positive squares in 4 ways, for example, as 12759184 + 269320921 = 3572^2 + 16411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 282080105 - 22 = 282080101 is a prime.

It is a super-2 number, since 2×2820801052 = 159138371273622050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (282080101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49436 + ... + 54845.

It is an arithmetic number, because the mean of its divisors is an integer number (42390633).

Almost surely, 2282080105 is an apocalyptic number.

It is an amenable number.

282080105 is a deficient number, since it is larger than the sum of its proper divisors (57044959).

282080105 is a wasteful number, since it uses less digits than its factorization.

282080105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104827.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 282080105 is about 16795.2405460595. The cubic root of 282080105 is about 655.8293052126.

The spelling of 282080105 in words is "two hundred eighty-two million, eighty thousand, one hundred five".

Divisors: 1 5 541 2705 104281 521405 56416021 282080105