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30142145304 = 2333118132
BaseRepresentation
bin11100000100100111…
…001010001100011000
32212210122202122002000
4130010213022030120
5443212342122204
621502550441000
72114644002435
oct340447121430
985718678060
1030142145304
1111868500997
125a12663160
132ac4973a4b
14165d28ab8c
15bb6356039
hex7049ca318

30142145304 has 48 divisors (see below), whose sum is σ = 83735269800. Its totient is φ = 10046531232.

The previous prime is 30142145249. The next prime is 30142145317. The reversal of 30142145304 is 40354124103.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

30142145304 is a `hidden beast` number, since 301 + 42 + 14 + 5 + 304 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2545702 + ... + 2557514.

Almost surely, 230142145304 is an apocalyptic number.

It is an amenable number.

30142145304 is an abundant number, since it is smaller than the sum of its proper divisors (53593124496).

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

30142145304 is an frugal number, since it uses more digits than its factorization.

30142145304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23641 (or 11818 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 30142145304 its reverse (40354124103), we get a palindrome (70496269407).

The spelling of 30142145304 in words is "thirty billion, one hundred forty-two million, one hundred forty-five thousand, three hundred four".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 11813 23626 35439 47252 70878 94504 106317 141756 212634 283512 318951 425268 637902 850536 1275804 2551608 139546969 279093938 418640907 558187876 837281814 1116375752 1255922721 1674563628 2511845442 3349127256 3767768163 5023690884 7535536326 10047381768 15071072652 30142145304