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30705773964 = 22310125334797
BaseRepresentation
bin11100100110001101…
…001110110110001100
32221020221022221020120
4130212031032312030
51000341134231324
622034523144540
72134626525615
oct344615166614
987227287216
1030705773964
11120276774a8
125b4b375150
132b84676628
1416b4086c0c
15beaa8c179
hex72634ed8c

30705773964 has 24 divisors (see below), whose sum is σ = 72356183088. Its totient is φ = 10133918400.

The previous prime is 30705773963. The next prime is 30705774013. The reversal of 30705773964 is 46937750703.

It is not an unprimeable number, because it can be changed into a prime (30705773963) 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, 12666187 + ... + 12668610.

It is an arithmetic number, because the mean of its divisors is an integer number (3014840962).

Almost surely, 230705773964 is an apocalyptic number.

It is an amenable number.

30705773964 is an abundant number, since it is smaller than the sum of its proper divisors (41650409124).

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

30705773964 is a wasteful number, since it uses less digits than its factorization.

30705773964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25334905 (or 25334903 counting only the distinct ones).

The product of its (nonzero) digits is 3333960, while the sum is 51.

The spelling of 30705773964 in words is "thirty billion, seven hundred five million, seven hundred seventy-three thousand, nine hundred sixty-four".

Divisors: 1 2 3 4 6 12 101 202 303 404 606 1212 25334797 50669594 76004391 101339188 152008782 304017564 2558814497 5117628994 7676443491 10235257988 15352886982 30705773964