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30000000006 = 2321666666667
BaseRepresentation
bin11011111100001000…
…111010110000000110
32212102202021220101100
4123330020322300012
5442420000000011
621440512040530
72111266535604
oct337410726006
985382256340
1030000000006
11117a5244039
125992b33146
132aa13950c2
141648448874
15ba8b28d56
hex6fc23ac06

30000000006 has 12 divisors (see below), whose sum is σ = 65000000052. Its totient is φ = 9999999996.

The previous prime is 30000000001. The next prime is 30000000013. The reversal of 30000000006 is 60000000003.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000000001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 833333316 + ... + 833333351.

It is an arithmetic number, because the mean of its divisors is an integer number (5416666671).

Almost surely, 230000000006 is an apocalyptic number.

30000000006 is an abundant number, since it is smaller than the sum of its proper divisors (35000000046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30000000006 is a wasteful number, since it uses less digits than its factorization.

30000000006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666666675 (or 1666666672 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

Adding to 30000000006 its reverse (60000000003), we get a palindrome (90000000009).

The spelling of 30000000006 in words is "thirty billion, six", and thus it is an aban number, an eban number, and an uban number.

Divisors: 1 2 3 6 9 18 1666666667 3333333334 5000000001 10000000002 15000000003 30000000006