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283490809489 = 439117236893
BaseRepresentation
bin1000010000000010101…
…11100111011010010001
31000002201221222020212201
410020001113213122101
514121042121400424
6334122303523201
726324111056516
oct4100127473221
91002657866781
10283490809489
11aa2561980a8
1246b385b9501
132096b723324
14da1470530d
157593136d44
hex42015e7691

283490809489 has 8 divisors (see below), whose sum is σ = 290402082432. Its totient is φ = 276594012240.

The previous prime is 283490809391. The next prime is 283490809501. The reversal of 283490809489 is 984908094382.

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

It is a cyclic number.

It is not a de Polignac number, because 283490809489 - 231 = 281343325841 is a prime.

It is a super-2 number, since 2×2834908094892 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 283490809489.

It is not an unprimeable number, because it can be changed into a prime (283490804489) 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, 3579274 + ... + 3657619.

It is an arithmetic number, because the mean of its divisors is an integer number (36300260304).

Almost surely, 2283490809489 is an apocalyptic number.

It is an amenable number.

283490809489 is a deficient number, since it is larger than the sum of its proper divisors (6911272943).

283490809489 is an equidigital number, since it uses as much as digits as its factorization.

283490809489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7237847.

The product of its (nonzero) digits is 35831808, while the sum is 64.

The spelling of 283490809489 in words is "two hundred eighty-three billion, four hundred ninety million, eight hundred nine thousand, four hundred eighty-nine".

Divisors: 1 43 911 39173 7236893 311186399 6592809523 283490809489