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30775307424 = 2531911678409
BaseRepresentation
bin11100101010010110…
…011110110010100000
32221102210011121012220
4130222112132302200
51001011434314144
622045445351040
72136432540231
oct345226366240
987383147186
1030775307424
1112062949a74
125b6a708480
132b95bb09a4
1416bd3c7088
15c01c24919
hex72a59eca0

30775307424 has 48 divisors (see below), whose sum is σ = 81208189440. Its totient is φ = 10204720640.

The previous prime is 30775307401. The next prime is 30775307473. The reversal of 30775307424 is 42470357703.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820869 + ... + 857540.

It is an arithmetic number, because the mean of its divisors is an integer number (1691837280).

Almost surely, 230775307424 is an apocalyptic number.

It is an amenable number.

30775307424 is an abundant number, since it is smaller than the sum of its proper divisors (50432882016).

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

30775307424 is a wasteful number, since it uses less digits than its factorization.

30775307424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678613 (or 1678605 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 42.

The spelling of 30775307424 in words is "thirty billion, seven hundred seventy-five million, three hundred seven thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 191 382 573 764 1146 1528 2292 3056 4584 6112 9168 18336 1678409 3356818 5035227 6713636 10070454 13427272 20140908 26854544 40281816 53709088 80563632 161127264 320576119 641152238 961728357 1282304476 1923456714 2564608952 3846913428 5129217904 7693826856 10258435808 15387653712 30775307424