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30105481976 = 234338690959
BaseRepresentation
bin11100000010011011…
…010011001011111000
32212201002202221102222
4130002123103023320
5443124000410401
621455200543212
72114020242323
oct340233231370
985632687388
1030105481976
111184983a219
125a02321b08
132aba1a7b7b
1416584657ba
15bb3012c1b
hex7026d32f8

30105481976 has 16 divisors (see below), whose sum is σ = 56578149600. Its totient is φ = 15017975424.

The previous prime is 30105481897. The next prime is 30105482041. The reversal of 30105481976 is 67918450103.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 4342016 + ... + 4348943.

It is an arithmetic number, because the mean of its divisors is an integer number (3536134350).

Almost surely, 230105481976 is an apocalyptic number.

It is an amenable number.

30105481976 is a deficient number, since it is larger than the sum of its proper divisors (26472667624).

30105481976 is a wasteful number, since it uses less digits than its factorization.

30105481976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8691398 (or 8691394 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 30105481976 in words is "thirty billion, one hundred five million, four hundred eighty-one thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 433 866 1732 3464 8690959 17381918 34763836 69527672 3763185247 7526370494 15052740988 30105481976