Search a number
-
+
68073400148 = 22131443790677
BaseRepresentation
bin111111011001011111…
…011010011101010100
320111201011010000201112
4333121133122131110
52103403242301043
651134505114152
74626631232315
oct773137323524
9214634100645
1068073400148
1126962729096
1211239788958
13655b25c640
14341abc660c
151b863eb518
hexfd97da754

68073400148 has 24 divisors (see below), whose sum is σ = 128302478472. Its totient is φ = 31415969664.

The previous prime is 68073400117. The next prime is 68073400189. The reversal of 68073400148 is 84100437086.

It can be written as a sum of positive squares in 4 ways, for example, as 1179785104 + 66893615044 = 34348^2 + 258638^2 .

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 705386 + ... + 796062.

It is an arithmetic number, because the mean of its divisors is an integer number (5345936603).

Almost surely, 268073400148 is an apocalyptic number.

It is an amenable number.

68073400148 is a deficient number, since it is larger than the sum of its proper divisors (60229078324).

68073400148 is a wasteful number, since it uses less digits than its factorization.

68073400148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105131 (or 105129 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 68073400148 in words is "sixty-eight billion, seventy-three million, four hundred thousand, one hundred forty-eight".

Divisors: 1 2 4 13 26 52 14437 28874 57748 90677 181354 187681 362708 375362 750724 1178801 2357602 4715204 1309103849 2618207698 5236415396 17018350037 34036700074 68073400148