Search a number
-
+
30221044212400 = 245275552610531
BaseRepresentation
bin1101101111100011000101…
…00110101110001010110000
310222000002210112101012100121
412313301202212232022300
512430120144304244100
6144135204523500024
76236253435242146
oct667614246561260
9128002715335317
1030221044212400
1196a1744662528
12348105a687614
1313b2aa85831c2
147669c62cd596
153761ba9d051a
hex1b7c629ae2b0

30221044212400 has 30 divisors (see below), whose sum is σ = 72606058721252. Its totient is φ = 12088417684800.

The previous prime is 30221044212329. The next prime is 30221044212467. The reversal of 30221044212400 is 421244012203.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37776304866 + ... + 37776305665.

Almost surely, 230221044212400 is an apocalyptic number.

It is an amenable number.

30221044212400 is an abundant number, since it is smaller than the sum of its proper divisors (42385014508852).

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

30221044212400 is a wasteful number, since it uses less digits than its factorization.

30221044212400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75552610549 (or 75552610538 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 30221044212400 its reverse (421244012203), we get a palindrome (30642288224603).

The spelling of 30221044212400 in words is "thirty trillion, two hundred twenty-one billion, forty-four million, two hundred twelve thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 75552610531 151105221062 302210442124 377763052655 604420884248 755526105310 1208841768496 1511052210620 1888815263275 3022104421240 3777630526550 6044208842480 7555261053100 15110522106200 30221044212400