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30055448745 = 325731947227
BaseRepresentation
bin11011111111011100…
…011100000010101001
32212120121121222202100
4123333130130002221
5443023143324440
621450212324013
72112542046000
oct337734340251
985517558670
1030055448745
1111823576543
1259a9613609
132aaca0a5ca
14165195dc37
15bad92d230
hex6ff71c0a9

30055448745 has 48 divisors (see below), whose sum is σ = 60753513600. Its totient is φ = 13739626656.

The previous prime is 30055448713. The next prime is 30055448747. The reversal of 30055448745 is 54784455003.

30055448745 is a `hidden beast` number, since 30 + 0 + 5 + 544 + 8 + 74 + 5 = 666.

It is not a de Polignac number, because 30055448745 - 25 = 30055448713 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 30055448745.

It is not an unprimeable number, because it can be changed into a prime (30055448747) 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, 958179 + ... + 989048.

It is an arithmetic number, because the mean of its divisors is an integer number (1265698200).

Almost surely, 230055448745 is an apocalyptic number.

30055448745 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30055448745 is an abundant number, since it is smaller than the sum of its proper divisors (30698064855).

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

30055448745 is a wasteful number, since it uses less digits than its factorization.

30055448745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947259 (or 1947242 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 45.

The spelling of 30055448745 in words is "thirty billion, fifty-five million, four hundred forty-eight thousand, seven hundred forty-five".

Divisors: 1 3 5 7 9 15 21 35 45 49 63 105 147 245 315 343 441 735 1029 1715 2205 3087 5145 15435 1947227 5841681 9736135 13630589 17525043 29208405 40891767 68152945 87625215 95414123 122675301 204458835 286242369 477070615 613376505 667898861 858727107 1431211845 2003696583 3339494305 4293635535 6011089749 10018482915 30055448745