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284342045 = 5136171713
BaseRepresentation
bin10000111100101…
…011011100011101
3201211001001221212
4100330223130131
51040242421140
644114234205
710021603361
oct2074533435
9654031855
10284342045
1113655a429
127b285965
1346ba7b40
1429a992a1
1519e69765
hex10f2b71d

284342045 has 16 divisors (see below), whose sum is σ = 373486512. Its totient is φ = 206530560.

The previous prime is 284342041. The next prime is 284342099. The reversal of 284342045 is 540243482.

It can be written as a sum of positive squares in 8 ways, for example, as 115498009 + 168844036 = 10747^2 + 12994^2 .

It is not a de Polignac number, because 284342045 - 22 = 284342041 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284342041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31892 + ... + 39821.

It is an arithmetic number, because the mean of its divisors is an integer number (23342907).

Almost surely, 2284342045 is an apocalyptic number.

It is an amenable number.

284342045 is a deficient number, since it is larger than the sum of its proper divisors (89144467).

284342045 is a wasteful number, since it uses less digits than its factorization.

284342045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71792.

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 284342045 is about 16862.4448108808. Note that the first 3 decimals coincide. The cubic root of 284342045 is about 657.5776253245.

The spelling of 284342045 in words is "two hundred eighty-four million, three hundred forty-two thousand, forty-five".

Divisors: 1 5 13 61 65 305 793 3965 71713 358565 932269 4374493 4661345 21872465 56868409 284342045