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30536533485 = 3251374953209
BaseRepresentation
bin11100011100000111…
…101000010111101101
32220211010212121221200
4130130013220113231
51000014323032420
622010035520113
72130503152263
oct343407502755
986733777850
1030536533485
1111a50093637
125b02759039
132b5859bc33
1416997d0433
15bdacabb90
hex71c1e85ed

30536533485 has 24 divisors (see below), whose sum is σ = 53316352440. Its totient is φ = 16167270912.

The previous prime is 30536533481. The next prime is 30536533493. The reversal of 30536533485 is 58433563503.

30536533485 is a `hidden beast` number, since 3 + 0 + 5 + 36 + 533 + 4 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3164841 + 30533368644 = 1779^2 + 174738^2 .

It is not a de Polignac number, because 30536533485 - 22 = 30536533481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 30536533485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30536533481) 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 23 ways as a sum of consecutive naturals, for example, 2470440 + ... + 2482769.

It is an arithmetic number, because the mean of its divisors is an integer number (2221514685).

Almost surely, 230536533485 is an apocalyptic number.

It is an amenable number.

30536533485 is a deficient number, since it is larger than the sum of its proper divisors (22779818955).

30536533485 is a wasteful number, since it uses less digits than its factorization.

30536533485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4953357 (or 4953354 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 45.

The spelling of 30536533485 in words is "thirty billion, five hundred thirty-six million, five hundred thirty-three thousand, four hundred eighty-five".

Divisors: 1 3 5 9 15 45 137 411 685 1233 2055 6165 4953209 14859627 24766045 44578881 74298135 222894405 678589633 2035768899 3392948165 6107306697 10178844495 30536533485