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30105300144 = 243949166083
BaseRepresentation
bin11100000010011010…
…100110110010110000
32212201002102201000110
4130002122212302300
5443123424101034
621455153021320
72114015554233
oct340232466260
985632381013
1030105300144
1111849725647
125a02254840
132aba14318a
14165841941a
15bb2ec8de9
hex7026a6cb0

30105300144 has 40 divisors (see below), whose sum is σ = 77781396672. Its totient is φ = 10033890880.

The previous prime is 30105300109. The next prime is 30105300149. The reversal of 30105300144 is 44100350103.

It is a self number, because there is not a number n which added to its sum of digits gives 30105300144.

It is not an unprimeable number, because it can be changed into a prime (30105300149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422527 + ... + 488609.

Almost surely, 230105300144 is an apocalyptic number.

It is an amenable number.

30105300144 is an abundant number, since it is smaller than the sum of its proper divisors (47676096528).

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

30105300144 is a wasteful number, since it uses less digits than its factorization.

30105300144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75585 (or 75579 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 30105300144 its reverse (44100350103), we get a palindrome (74205650247).

The spelling of 30105300144 in words is "thirty billion, one hundred five million, three hundred thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 9491 18982 28473 37964 56946 66083 75928 113892 132166 151856 198249 227784 264332 396498 455568 528664 792996 1057328 1585992 3171984 627193753 1254387506 1881581259 2508775012 3763162518 5017550024 7526325036 10035100048 15052650072 30105300144