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30680268763 = 227439307871
BaseRepresentation
bin11100100100101011…
…111011111111011011
32221012011100010200111
4130210223323333123
51000313122100023
622032212345151
72134166660464
oct344453737733
987164303614
1030680268763
1112014237021
125b429151b7
132b7c2b64b1
1416b0927d6b
15be870000d
hex724afbfdb

30680268763 has 8 divisors (see below), whose sum is σ = 30885719040. Its totient is φ = 30475435560.

The previous prime is 30680268743. The next prime is 30680268779. The reversal of 30680268763 is 36786208603.

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

It is a cyclic number.

It is not a de Polignac number, because 30680268763 - 225 = 30646714331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30680268743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54283 + ... + 253588.

It is an arithmetic number, because the mean of its divisors is an integer number (3860714880).

Almost surely, 230680268763 is an apocalyptic number.

30680268763 is a deficient number, since it is larger than the sum of its proper divisors (205450277).

30680268763 is a wasteful number, since it uses less digits than its factorization.

30680268763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308537.

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 30680268763 in words is "thirty billion, six hundred eighty million, two hundred sixty-eight thousand, seven hundred sixty-three".

Divisors: 1 227 439 99653 307871 69886717 135155369 30680268763