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30606002320 = 245382575029
BaseRepresentation
bin11100100000010000…
…101000100010010000
32220222222121000021111
4130200100220202100
51000140114033240
622021000503104
72132305504315
oct344020504220
986888530244
1030606002320
1111a863215a3
125b21a7aa94
132b69ab2a5a
1416a4b14d0c
15be1e301ea
hex720428890

30606002320 has 20 divisors (see below), whose sum is σ = 71158955580. Its totient is φ = 12242400896.

The previous prime is 30606002311. The next prime is 30606002327. The reversal of 30606002320 is 2320060603.

It can be written as a sum of positive squares in 2 ways, for example, as 19430129664 + 11175872656 = 139392^2 + 105716^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 30606002291 and 30606002300.

It is not an unprimeable number, because it can be changed into a prime (30606002327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191287435 + ... + 191287594.

It is an arithmetic number, because the mean of its divisors is an integer number (3557947779).

Almost surely, 230606002320 is an apocalyptic number.

It is an amenable number.

30606002320 is an abundant number, since it is smaller than the sum of its proper divisors (40552953260).

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

30606002320 is a wasteful number, since it uses less digits than its factorization.

30606002320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382575042 (or 382575036 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 30606002320 its reverse (2320060603), we get a palindrome (32926062923).

The spelling of 30606002320 in words is "thirty billion, six hundred six million, two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 382575029 765150058 1530300116 1912875145 3060600232 3825750290 6121200464 7651500580 15303001160 30606002320