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30431042343 = 32132393173433
BaseRepresentation
bin11100010101110101…
…001101101100100111
32220112210101010022100
4130111311031230213
5444310321323333
621551350503143
72125052410032
oct342565155447
986483333270
1030431042343
11119a6591579
125a93364ab3
132b3c784c40
1416897b0019
15bd18c0213
hex715d4db27

30431042343 has 48 divisors (see below), whose sum is σ = 47699084160. Its totient is φ = 18584197632.

The previous prime is 30431042309. The next prime is 30431042347. The reversal of 30431042343 is 34324013403.

30431042343 is a `hidden beast` number, since 3 + 0 + 4 + 310 + 4 + 2 + 343 = 666.

It is not a de Polignac number, because 30431042343 - 233 = 21841107751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30431042347) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8862555 + ... + 8865987.

It is an arithmetic number, because the mean of its divisors is an integer number (993730920).

Almost surely, 230431042343 is an apocalyptic number.

30431042343 is a deficient number, since it is larger than the sum of its proper divisors (17268041817).

30431042343 is a wasteful number, since it uses less digits than its factorization.

30431042343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4008 (or 4005 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 30431042343 its reverse (34324013403), we get a palindrome (64755055746).

The spelling of 30431042343 in words is "thirty billion, four hundred thirty-one million, forty-two thousand, three hundred forty-three".

Divisors: 1 3 9 13 39 117 239 317 717 951 2151 2853 3107 3433 4121 9321 10299 12363 27963 30897 37089 44629 75763 133887 227289 401661 681867 820487 984919 1088261 2461461 2954757 3264783 7384383 8864271 9794349 10666331 14147393 31998993 42442179 95996979 127326537 260094379 780283137 2340849411 3381226927 10143680781 30431042343