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3000006305 = 5600001261
BaseRepresentation
bin1011001011010000…
…0111011010100001
321202002001002222122
42302310013122201
522121000200210
61213404314025
7134225430032
oct26264073241
97662032878
103000006305
1112aa47515a
126b8842915
1338a6b737a
14206608a89
15128595b55
hexb2d076a1

3000006305 has 4 divisors (see below), whose sum is σ = 3600007572. Its totient is φ = 2400005040.

The previous prime is 3000006283. The next prime is 3000006313. The reversal of 3000006305 is 5036000003.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5036000003 = 31162451613.

It can be written as a sum of positive squares in 2 ways, for example, as 748788496 + 2251217809 = 27364^2 + 47447^2 .

It is not a de Polignac number, because 3000006305 - 212 = 3000002209 is a prime.

It is a super-3 number, since 3×30000063053 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300000626 + ... + 300000635.

It is an arithmetic number, because the mean of its divisors is an integer number (900001893).

Almost surely, 23000006305 is an apocalyptic number.

It is an amenable number.

3000006305 is a deficient number, since it is larger than the sum of its proper divisors (600001267).

3000006305 is an equidigital number, since it uses as much as digits as its factorization.

3000006305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600001266.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 3000006305 is about 54772.3133069985. The cubic root of 3000006305 is about 1442.2505806826.

Adding to 3000006305 its reverse (5036000003), we get a palindrome (8036006308).

The spelling of 3000006305 in words is "three billion, six thousand, three hundred five".

Divisors: 1 5 600001261 3000006305