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30105404568 = 2333139376873
BaseRepresentation
bin11100000010011011…
…000000010010011000
32212201002122000021000
4130002123000102120
5443123440421233
621455155145000
72114016500541
oct340233002230
985632560230
1030105404568
1111849797048
125a022a5160
132aba17b875
1416584454c8
15bb2ee9d13
hex7026c0498

30105404568 has 32 divisors (see below), whose sum is σ = 83626124400. Its totient is φ = 10035134784.

The previous prime is 30105404561. The next prime is 30105404569. The reversal of 30105404568 is 86540450103.

It is a happy number.

30105404568 is a `hidden beast` number, since 3 + 0 + 10 + 540 + 45 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30105404561) 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, 69688221 + ... + 69688652.

Almost surely, 230105404568 is an apocalyptic number.

It is an amenable number.

30105404568 is an abundant number, since it is smaller than the sum of its proper divisors (53520719832).

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

30105404568 is a wasteful number, since it uses less digits than its factorization.

30105404568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139376888 (or 139376878 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 30105404568 in words is "thirty billion, one hundred five million, four hundred four thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 139376873 278753746 418130619 557507492 836261238 1115014984 1254391857 1672522476 2508783714 3345044952 3763175571 5017567428 7526351142 10035134856 15052702284 30105404568