Search a number
-
+
68223578 = 2160721227
BaseRepresentation
bin1000001000100…
…00001001011010
311202101010011012
410010100021122
5114431123303
610434133522
71455614363
oct404201132
9152333135
1068223578
1135568425
121aa212a2
13111990a7
1490bcb6a
155ec95d8
hex411025a

68223578 has 8 divisors (see below), whose sum is σ = 102403872. Its totient is φ = 34088956.

The previous prime is 68223577. The next prime is 68223583. The reversal of 68223578 is 87532286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (68223577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7400 + ... + 13827.

It is an arithmetic number, because the mean of its divisors is an integer number (12800484).

Almost surely, 268223578 is an apocalyptic number.

68223578 is a deficient number, since it is larger than the sum of its proper divisors (34180294).

68223578 is a wasteful number, since it uses less digits than its factorization.

68223578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22836.

The product of its digits is 161280, while the sum is 41.

The square root of 68223578 is about 8259.7565339421. The cubic root of 68223578 is about 408.6123582110.

The spelling of 68223578 in words is "sixty-eight million, two hundred twenty-three thousand, five hundred seventy-eight".

Divisors: 1 2 1607 3214 21227 42454 34111789 68223578