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283265838 = 23223684217
BaseRepresentation
bin10000111000100…
…100101100101110
3201202000101200100
4100320210230232
51040004001323
644035211530
710006501632
oct2070445456
9652011610
10283265838
111359948a9
127aa46ba6
13468bc02b
1429898dc2
1519d05943
hex10e24b2e

283265838 has 24 divisors (see below), whose sum is σ = 640428048. Its totient is φ = 90316512.

The previous prime is 283265831. The next prime is 283265863. The reversal of 283265838 is 838562382.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 283265793 and 283265802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283265831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 341695 + ... + 342522.

It is an arithmetic number, because the mean of its divisors is an integer number (26684502).

Almost surely, 2283265838 is an apocalyptic number.

283265838 is an abundant number, since it is smaller than the sum of its proper divisors (357162210).

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

283265838 is a wasteful number, since it uses less digits than its factorization.

283265838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684248 (or 684245 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 283265838 is about 16830.5032010335. The cubic root of 283265838 is about 656.7469539746.

The spelling of 283265838 in words is "two hundred eighty-three million, two hundred sixty-five thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 9 18 23 46 69 138 207 414 684217 1368434 2052651 4105302 6157953 12315906 15736991 31473982 47210973 94421946 141632919 283265838