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68016211199 = 312194071329
BaseRepresentation
bin111111010110000101…
…010000010011111111
320111120011111112020022
4333112011100103333
52103244122224244
651125103242355
74625335153556
oct772605202377
9214504445208
1068016211199
11269334181a2
12112225a93bb
13654c458021
14341337ad9d
151b813a16ee
hexfd61504ff

68016211199 has 4 divisors (see below), whose sum is σ = 70210282560. Its totient is φ = 65822139840.

The previous prime is 68016211117. The next prime is 68016211243. The reversal of 68016211199 is 99111261086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68016211199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68016214199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1097035634 + ... + 1097035695.

It is an arithmetic number, because the mean of its divisors is an integer number (17552570640).

Almost surely, 268016211199 is an apocalyptic number.

68016211199 is a deficient number, since it is larger than the sum of its proper divisors (2194071361).

68016211199 is a wasteful number, since it uses less digits than its factorization.

68016211199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194071360.

The product of its (nonzero) digits is 46656, while the sum is 44.

The spelling of 68016211199 in words is "sixty-eight billion, sixteen million, two hundred eleven thousand, one hundred ninety-nine".

Divisors: 1 31 2194071329 68016211199