Search a number
-
+
68351122285 = 5101237756941
BaseRepresentation
bin111111101010000010…
…110101101101101101
320112102111200202212121
4333222002311231231
52104440341403120
651222225432541
74636542644665
oct775202655555
9215374622777
1068351122285
1126a95476916
12112b679b751
1365a395a274
143445a3b1a5
151ba09a95aa
hexfea0b5b6d

68351122285 has 16 divisors (see below), whose sum is σ = 82869742512. Its totient is φ = 54115776000.

The previous prime is 68351122249. The next prime is 68351122297. The reversal of 68351122285 is 58222115386.

It can be written as a sum of positive squares in 8 ways, for example, as 2082461956 + 66268660329 = 45634^2 + 257427^2 .

It is not a de Polignac number, because 68351122285 - 211 = 68351120237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1171915 + ... + 1228855.

It is an arithmetic number, because the mean of its divisors is an integer number (5179358907).

Almost surely, 268351122285 is an apocalyptic number.

It is an amenable number.

68351122285 is a deficient number, since it is larger than the sum of its proper divisors (14518620227).

68351122285 is a wasteful number, since it uses less digits than its factorization.

68351122285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59424.

The product of its digits is 230400, while the sum is 43.

The spelling of 68351122285 in words is "sixty-eight billion, three hundred fifty-one million, one hundred twenty-two thousand, two hundred eighty-five".

Divisors: 1 5 101 505 2377 11885 56941 240077 284705 1200385 5751041 28755205 135348757 676743785 13670224457 68351122285