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30706525075 = 526531880951
BaseRepresentation
bin11100100110010000…
…000110001110010011
32221020222202002120111
4130212100012032103
51000341332300300
622034551222151
72134636104502
oct344620061623
987228662514
1030706525075
111202803a856
125b4b677957
132b8487a485
1416b4200839
15beab899ba
hex726406393

30706525075 has 12 divisors (see below), whose sum is σ = 38134420848. Its totient is φ = 24527588000.

The previous prime is 30706525049. The next prime is 30706525079. The reversal of 30706525075 is 57052560703.

It is not a de Polignac number, because 30706525075 - 227 = 30572307347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30706525079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 924151 + ... + 956800.

It is an arithmetic number, because the mean of its divisors is an integer number (3177868404).

Almost surely, 230706525075 is an apocalyptic number.

30706525075 is a deficient number, since it is larger than the sum of its proper divisors (7427895773).

30706525075 is a wasteful number, since it uses less digits than its factorization.

30706525075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881614 (or 1881609 counting only the distinct ones).

The product of its (nonzero) digits is 220500, while the sum is 40.

The spelling of 30706525075 in words is "thirty billion, seven hundred six million, five hundred twenty-five thousand, seventy-five".

Divisors: 1 5 25 653 3265 16325 1880951 9404755 47023775 1228261003 6141305015 30706525075