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30013012000 = 25537503253
BaseRepresentation
bin11011111100111010…
…100011100000100000
32212110122202222111001
4123330322203200200
5442431312341000
621442055001344
72111515251466
oct337472434040
985418688431
1030013012000
1111801621154
125997369254
132aa3c9c8ca
14164a074836
15ba9d4946a
hex6fcea3820

30013012000 has 48 divisors (see below), whose sum is σ = 73741980312. Its totient is φ = 12005203200.

The previous prime is 30013011961. The next prime is 30013012013. The reversal of 30013012000 is 21031003.

It can be written as a sum of positive squares in 4 ways, for example, as 16248091024 + 13764920976 = 127468^2 + 117324^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3747627 + ... + 3755626.

Almost surely, 230013012000 is an apocalyptic number.

It is an amenable number.

30013012000 is an abundant number, since it is smaller than the sum of its proper divisors (43728968312).

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

30013012000 is an equidigital number, since it uses as much as digits as its factorization.

30013012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7503278 (or 7503260 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 30013012000 its reverse (21031003), we get a palindrome (30034043003).

The spelling of 30013012000 in words is "thirty billion, thirteen million, twelve thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 800 1000 2000 4000 7503253 15006506 30013012 37516265 60026024 75032530 120052048 150065060 187581325 240104096 300130120 375162650 600260240 750325300 937906625 1200520480 1500650600 1875813250 3001301200 3751626500 6002602400 7503253000 15006506000 30013012000