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30561230636 = 2236720818277
BaseRepresentation
bin11100011101100101…
…110101111100101100
32220212212100101001222
4130131211311330230
51000042133340021
622012321122512
72131223113526
oct343545657454
986785311058
1030561230636
1111a63021a02
125b0aa89438
132b60738331
14169cbbca16
15bdd0396ab
hex71d975f2c

30561230636 has 12 divisors (see below), whose sum is σ = 53627884128. Its totient is φ = 15238978032.

The previous prime is 30561230617. The next prime is 30561230653. The reversal of 30561230636 is 63603216503.

It is a junction number, because it is equal to n+sod(n) for n = 30561230596 and 30561230605.

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, 10407671 + ... + 10410606.

It is an arithmetic number, because the mean of its divisors is an integer number (4468990344).

Almost surely, 230561230636 is an apocalyptic number.

It is an amenable number.

30561230636 is a deficient number, since it is larger than the sum of its proper divisors (23066653492).

30561230636 is a wasteful number, since it uses less digits than its factorization.

30561230636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20818648 (or 20818646 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 35.

The spelling of 30561230636 in words is "thirty billion, five hundred sixty-one million, two hundred thirty thousand, six hundred thirty-six".

Divisors: 1 2 4 367 734 1468 20818277 41636554 83273108 7640307659 15280615318 30561230636