Search a number
-
+
68602078000 = 245334301039
BaseRepresentation
bin111111111001000000…
…001010001100110000
320120001222220122101201
4333321000022030300
52110444112444000
651303152340544
74646011020211
oct777100121460
9216058818351
1068602078000
11271040a2635
1211366844754
136613945981
14346b0c5408
151bb7a2b96a
hexff900a330

68602078000 has 40 divisors (see below), whose sum is σ = 165879829440. Its totient is φ = 27440830400.

The previous prime is 68602077991. The next prime is 68602078003. The reversal of 68602078000 is 87020686.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (68602078003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17148520 + ... + 17152519.

It is an arithmetic number, because the mean of its divisors is an integer number (4146995736).

Almost surely, 268602078000 is an apocalyptic number.

It is an amenable number.

68602078000 is an abundant number, since it is smaller than the sum of its proper divisors (97277751440).

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

68602078000 is a wasteful number, since it uses less digits than its factorization.

68602078000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34301062 (or 34301046 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

Adding to 68602078000 its reverse (87020686), we get a palindrome (68689098686).

The spelling of 68602078000 in words is "sixty-eight billion, six hundred two million, seventy-eight thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 34301039 68602078 137204156 171505195 274408312 343010390 548816624 686020780 857525975 1372041560 1715051950 2744083120 3430103900 4287629875 6860207800 8575259750 13720415600 17150519500 34301039000 68602078000