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3089478985 = 51259490783
BaseRepresentation
bin1011100000100101…
…1011010101001001
321222022101210102121
42320021123111021
522311401311420
61230322131241
7136363065235
oct27011332511
97868353377
103089478985
111345a2631a
127227b0b21
133a30b3298
142144595c5
1513136b2aa
hexb825b549

3089478985 has 8 divisors (see below), whose sum is σ = 3710327040. Its totient is φ = 2469615024.

The previous prime is 3089478949. The next prime is 3089478989. The reversal of 3089478985 is 5898749803.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3089478985 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3089478989) 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, 239097 + ... + 251686.

It is an arithmetic number, because the mean of its divisors is an integer number (463790880).

Almost surely, 23089478985 is an apocalyptic number.

It is an amenable number.

3089478985 is a deficient number, since it is larger than the sum of its proper divisors (620848055).

3089478985 is a wasteful number, since it uses less digits than its factorization.

3089478985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492047.

The product of its (nonzero) digits is 17418240, while the sum is 61.

The square root of 3089478985 is about 55583.0818235189. The cubic root of 3089478985 is about 1456.4483297206.

The spelling of 3089478985 in words is "three billion, eighty-nine million, four hundred seventy-eight thousand, nine hundred eighty-five".

Divisors: 1 5 1259 6295 490783 2453915 617895797 3089478985