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30787226082 = 232413572
BaseRepresentation
bin11100101011000011…
…111100100111100010
32221110121121010112200
4130223003330213202
51001023012213312
622050553034030
72136636050424
oct345303744742
987417533480
1030787226082
111206964a6a8
125b726b5916
132b984c4952
1416c0c0a814
15c02ccb0dc
hex72b0fc9e2

30787226082 has 18 divisors (see below), whose sum is σ = 66707269473. Its totient is φ = 10262160552.

The previous prime is 30787226077. The next prime is 30787226087. The reversal of 30787226082 is 28062278703.

30787226082 is a `hidden beast` number, since 30 + 7 + 8 + 7 + 2 + 2 + 608 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (30787226077) and next prime (30787226087).

It can be written as a sum of positive squares in 2 ways, for example, as 29842217001 + 945009081 = 172749^2 + 30741^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅BA, here for A=2, B=124071.

It is not an unprimeable number, because it can be changed into a prime (30787226087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 723748 + ... + 765104.

Almost surely, 230787226082 is an apocalyptic number.

30787226082 is an abundant number, since it is smaller than the sum of its proper divisors (35920043391).

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

30787226082 is an frugal number, since it uses more digits than its factorization.

30787226082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82722 (or 41362 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 30787226082 in words is "thirty billion, seven hundred eighty-seven million, two hundred twenty-six thousand, eighty-two".

Divisors: 1 2 3 6 9 18 41357 82714 124071 248142 372213 744426 1710401449 3420802898 5131204347 10262408694 15393613041 30787226082