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30806932743 = 3820992237
BaseRepresentation
bin11100101100001111…
…000111110100000111
32221111222200100000000
4130230033013310013
51001043033321433
622052535252343
72140265415306
oct345417076407
987458610000
1030806932743
111207978a5a4
125b7921a0b3
132b9c6046b2
1416c369a43d
15c048c0113
hex72c3c7d07

30806932743 has 36 divisors (see below), whose sum is σ = 46250731800. Its totient is φ = 20518993872.

The previous prime is 30806932733. The next prime is 30806932763. The reversal of 30806932743 is 34723960803.

It is not a de Polignac number, because 30806932743 - 24 = 30806932727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30806932733) 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 35 ways as a sum of consecutive naturals, for example, 13770421 + ... + 13772657.

It is an arithmetic number, because the mean of its divisors is an integer number (1284742550).

Almost surely, 230806932743 is an apocalyptic number.

30806932743 is a deficient number, since it is larger than the sum of its proper divisors (15443799057).

30806932743 is an frugal number, since it uses more digits than its factorization.

30806932743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360 (or 4339 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 30806932743 in words is "thirty billion, eight hundred six million, nine hundred thirty-two thousand, seven hundred forty-three".

Divisors: 1 3 9 27 81 243 729 2099 2187 2237 6297 6561 6711 18891 20133 56673 60399 170019 181197 510057 543591 1530171 1630773 4590513 4695463 4892319 13771539 14086389 14676957 42259167 126777501 380332503 1140997509 3422992527 10268977581 30806932743