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283664089 = 377666597
BaseRepresentation
bin10000111010000…
…101111011011001
3201202202121222101
4100322011323121
51040104222324
644051523401
710013051002
oct2072057331
9652677871
10283664089
11136137035
127abb9561
13469cb397
14299601a9
1519d83944
hex10e85ed9

283664089 has 4 divisors (see below), whose sum is σ = 291330724. Its totient is φ = 275997456.

The previous prime is 283664071. The next prime is 283664113. The reversal of 283664089 is 980466382.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 262180864 + 21483225 = 16192^2 + 4635^2 .

It is a cyclic number.

It is not a de Polignac number, because 283664089 - 217 = 283533017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (283664039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3833262 + ... + 3833335.

It is an arithmetic number, because the mean of its divisors is an integer number (72832681).

Almost surely, 2283664089 is an apocalyptic number.

It is an amenable number.

283664089 is a deficient number, since it is larger than the sum of its proper divisors (7666635).

283664089 is an equidigital number, since it uses as much as digits as its factorization.

283664089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7666634.

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 283664089 is about 16842.3302722634. The cubic root of 283664089 is about 657.0545892043.

The spelling of 283664089 in words is "two hundred eighty-three million, six hundred sixty-four thousand, eighty-nine".

Divisors: 1 37 7666597 283664089