Search a number
-
+
68195424 = 2531164579
BaseRepresentation
bin1000001000010…
…01010001100000
311202022200112110
410010021101200
5114424223144
610433355320
71455436323
oct404112140
9152280473
1068195424
1135549260
121aa08b40
131118932b
1490b27ba
155ec10b9
hex4109460

68195424 has 48 divisors (see below), whose sum is σ = 195289920. Its totient is φ = 20664960.

The previous prime is 68195419. The next prime is 68195441. The reversal of 68195424 is 42459186.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31234 + ... + 33345.

It is an arithmetic number, because the mean of its divisors is an integer number (4068540).

Almost surely, 268195424 is an apocalyptic number.

It is an amenable number.

68195424 is an abundant number, since it is smaller than the sum of its proper divisors (127094496).

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

68195424 is a wasteful number, since it uses less digits than its factorization.

68195424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64603 (or 64595 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 68195424 is about 8258.0520705551. The cubic root of 68195424 is about 408.5561427720.

The spelling of 68195424 in words is "sixty-eight million, one hundred ninety-five thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 132 176 264 352 528 1056 64579 129158 193737 258316 387474 516632 710369 774948 1033264 1420738 1549896 2066528 2131107 2841476 3099792 4262214 5682952 6199584 8524428 11365904 17048856 22731808 34097712 68195424