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3000002605 = 52521238001
BaseRepresentation
bin1011001011010000…
…0110100000101101
321202002000220220121
42302310012200231
522121000040410
61213404244541
7134225413165
oct26264064055
97662026817
103000002605
1112aa4723a6
126b8840751
1338a6b5792
142066075a5
151285949da
hexb2d0682d

3000002605 has 8 divisors (see below), whose sum is σ = 3601446264. Its totient is φ = 2399040000.

The previous prime is 3000002591. The next prime is 3000002633. The reversal of 3000002605 is 5062000003.

It can be written as a sum of positive squares in 4 ways, for example, as 3316041 + 2996686564 = 1821^2 + 54742^2 .

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

It is not a de Polignac number, because 3000002605 - 215 = 2999969837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106396 + ... + 131605.

It is an arithmetic number, because the mean of its divisors is an integer number (450180783).

Almost surely, 23000002605 is an apocalyptic number.

It is an amenable number.

3000002605 is a deficient number, since it is larger than the sum of its proper divisors (601443659).

3000002605 is a wasteful number, since it uses less digits than its factorization.

3000002605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240527.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 3000002605 is about 54772.2795307992. The cubic root of 3000002605 is about 1442.2499877584.

Adding to 3000002605 its reverse (5062000003), we get a palindrome (8062002608).

The spelling of 3000002605 in words is "three billion, two thousand, six hundred five".

Divisors: 1 5 2521 12605 238001 1190005 600000521 3000002605