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30958609768 = 233869826221
BaseRepresentation
bin11100110101010001…
…101110010101101000
32221220120002022202121
4130311101232111220
51001400401003033
622115554241024
72144116561342
oct346521562550
987816068677
1030958609768
1112147367809
125bbbb86174
132bc4b6ca08
1416d98a0292
15c12d8162d
hex73546e568

30958609768 has 8 divisors (see below), whose sum is σ = 58047393330. Its totient is φ = 15479304880.

The previous prime is 30958609757. The next prime is 30958609777. The reversal of 30958609768 is 86790685903.

It can be written as a sum of positive squares in only one way, i.e., 30367244644 + 591365124 = 174262^2 + 24318^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1934913103 + ... + 1934913118.

Almost surely, 230958609768 is an apocalyptic number.

It is an amenable number.

30958609768 is a deficient number, since it is larger than the sum of its proper divisors (27088783562).

30958609768 is a wasteful number, since it uses less digits than its factorization.

30958609768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3869826227 (or 3869826223 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 30958609768 in words is "thirty billion, nine hundred fifty-eight million, six hundred nine thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 3869826221 7739652442 15479304884 30958609768