Search a number
-
+
68346145 = 571952747
BaseRepresentation
bin1000001001011…
…10000100100001
311202121100021201
410010232010201
5114444034040
610440521201
71456634620
oct404560441
9152540251
1068346145
113564151a
121aa80201
131120cb0a
1491116b7
156000a9a
hex412e121

68346145 has 8 divisors (see below), whose sum is σ = 93731904. Its totient is φ = 46865904.

The previous prime is 68346121. The next prime is 68346181. The reversal of 68346145 is 54164386.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68346145 - 27 = 68346017 is a prime.

It is a super-2 number, since 2×683461452 = 9342391072722050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 976339 + ... + 976408.

It is an arithmetic number, because the mean of its divisors is an integer number (11716488).

Almost surely, 268346145 is an apocalyptic number.

It is an amenable number.

68346145 is a deficient number, since it is larger than the sum of its proper divisors (25385759).

68346145 is a wasteful number, since it uses less digits than its factorization.

68346145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952759.

The product of its digits is 69120, while the sum is 37.

The square root of 68346145 is about 8267.1727331658. The cubic root of 68346145 is about 408.8569091930.

The spelling of 68346145 in words is "sixty-eight million, three hundred forty-six thousand, one hundred forty-five".

Divisors: 1 5 7 35 1952747 9763735 13669229 68346145