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68556216298 = 2100693404321
BaseRepresentation
bin111111110110010001…
…001101011111101010
320112221210121121222011
4333312101031133222
52110400342410143
651254433350134
74644613136503
oct776621153752
9215853547864
1068556216298
1127090218aa9
121135340834a
1366072a907b
143464d87baa
151bb39bce9d
hexff644d7ea

68556216298 has 8 divisors (see below), whose sum is σ = 102844567620. Its totient is φ = 34274693760.

The previous prime is 68556216283. The next prime is 68556216301. The reversal of 68556216298 is 89261265586.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68098555849 + 457660449 = 260957^2 + 21393^2 .

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

It is a super-3 number, since 3×685562162983 (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1682023 + ... + 1722298.

Almost surely, 268556216298 is an apocalyptic number.

68556216298 is a deficient number, since it is larger than the sum of its proper divisors (34288351322).

68556216298 is a wasteful number, since it uses less digits than its factorization.

68556216298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414392.

The product of its digits is 12441600, while the sum is 58.

The spelling of 68556216298 in words is "sixty-eight billion, five hundred fifty-six million, two hundred sixteen thousand, two hundred ninety-eight".

Divisors: 1 2 10069 20138 3404321 6808642 34278108149 68556216298