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30775074968 = 2311402786843
BaseRepresentation
bin11100101010010101…
…100110000010011000
32221102202201210100102
4130222111212002120
51001011404344333
622045440354532
72136430551431
oct345225460230
987382653312
1030775074968
1112062800360
125b6a615a48
132b95b2bc41
1416bd366488
15c01bcaae8
hex72a566098

30775074968 has 32 divisors (see below), whose sum is σ = 62965373760. Its totient is φ = 13985035680.

The previous prime is 30775074929. The next prime is 30775074973. The reversal of 30775074968 is 86947057703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310955 + ... + 397797.

It is an arithmetic number, because the mean of its divisors is an integer number (1967667930).

Almost surely, 230775074968 is an apocalyptic number.

It is an amenable number.

30775074968 is an abundant number, since it is smaller than the sum of its proper divisors (32190298792).

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

30775074968 is a wasteful number, since it uses less digits than its factorization.

30775074968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90887 (or 90883 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 56.

The spelling of 30775074968 in words is "thirty billion, seven hundred seventy-five million, seventy-four thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 11 22 44 88 4027 8054 16108 32216 44297 86843 88594 173686 177188 347372 354376 694744 955273 1910546 3821092 7642184 349716761 699433522 1398867044 2797734088 3846884371 7693768742 15387537484 30775074968