Search a number
-
+
30221011030212 = 223229157184377889
BaseRepresentation
bin1101101111100011000001…
…01000001001000011000100
310222000002201012221100221200
412313301200220021003010
512430120112310431322
6144135201340342500
76236252553221112
oct667614050110304
9128002635840850
1030221011030212
1196a1727959232
12348104b544a30
1313b2aa1735982
147669c1b32ab2
153761b7b288ac
hex1b7c60a090c4

30221011030212 has 72 divisors (see below), whose sum is σ = 79529559072600. Its totient is φ = 9664351377408.

The previous prime is 30221011030151. The next prime is 30221011030219. The reversal of 30221011030212 is 21203011012203.

30221011030212 is a `hidden beast` number, since 30 + 2 + 210 + 110 + 302 + 12 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6571716823296 + 23649294206916 = 2563536^2 + 4863054^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30221011030219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92025037 + ... + 92352852.

Almost surely, 230221011030212 is an apocalyptic number.

It is an amenable number.

30221011030212 is an abundant number, since it is smaller than the sum of its proper divisors (49308548042388).

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

30221011030212 is a wasteful number, since it uses less digits than its factorization.

30221011030212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184378085 (or 184378080 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 30221011030212 its reverse (21203011012203), we get a palindrome (51424022042415).

The spelling of 30221011030212 in words is "thirty trillion, two hundred twenty-one billion, eleven million, thirty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 29 36 58 87 116 157 174 261 314 348 471 522 628 942 1044 1413 1884 2826 4553 5652 9106 13659 18212 27318 40977 54636 81954 163908 184377889 368755778 553133667 737511556 1106267334 1659401001 2212534668 3318802002 5346958781 6637604004 10693917562 16040876343 21387835124 28947328573 32081752686 48122629029 57894657146 64163505372 86841985719 96245258058 115789314292 173683971438 192490516116 260525957157 347367942876 521051914314 839472528617 1042103828628 1678945057234 2518417585851 3357890114468 5036835171702 7555252757553 10073670343404 15110505515106 30221011030212