Search a number
-
+
68958745 = 567205847
BaseRepresentation
bin1000001110000…
…11101000011001
311210202110121121
410013003220121
5120123134440
610502005241
71465065622
oct407035031
9153673547
1068958745
1135a1a7a9
121b116821
13113958bb
149230a49
1560c234a
hex41c3a19

68958745 has 8 divisors (see below), whose sum is σ = 83985984. Its totient is φ = 54343344.

The previous prime is 68958739. The next prime is 68958763. The reversal of 68958745 is 54785986.

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 68958745 - 23 = 68958737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68958692 and 68958701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102589 + ... + 103258.

It is an arithmetic number, because the mean of its divisors is an integer number (10498248).

Almost surely, 268958745 is an apocalyptic number.

It is an amenable number.

68958745 is a deficient number, since it is larger than the sum of its proper divisors (15027239).

68958745 is a wasteful number, since it uses less digits than its factorization.

68958745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205919.

The product of its digits is 2419200, while the sum is 52.

The square root of 68958745 is about 8304.1402324383. The cubic root of 68958745 is about 410.0748326624.

The spelling of 68958745 in words is "sixty-eight million, nine hundred fifty-eight thousand, seven hundred forty-five".

Divisors: 1 5 67 335 205847 1029235 13791749 68958745