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68824897315 = 585811604123
BaseRepresentation
bin100000000011001001…
…0001001011100100011
320120122112012001000221
41000012102021130203
52111423133203230
651341232223511
74654354655206
oct1000622113443
9216575161027
1068824897315
1127208951029
121140939ab97
13664ab5c715
14348c92793d
151bcc39227a
hex1006489723

68824897315 has 8 divisors (see below), whose sum is σ = 82599553008. Its totient is φ = 55053467040.

The previous prime is 68824897313. The next prime is 68824897319. The reversal of 68824897315 is 51379842886.

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

It is not a de Polignac number, because 68824897315 - 21 = 68824897313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68824897313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 759157 + ... + 844966.

It is an arithmetic number, because the mean of its divisors is an integer number (10324944126).

Almost surely, 268824897315 is an apocalyptic number.

68824897315 is a deficient number, since it is larger than the sum of its proper divisors (13774655693).

68824897315 is a wasteful number, since it uses less digits than its factorization.

68824897315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612709.

The product of its digits is 23224320, while the sum is 61.

The spelling of 68824897315 in words is "sixty-eight billion, eight hundred twenty-four million, eight hundred ninety-seven thousand, three hundred fifteen".

Divisors: 1 5 8581 42905 1604123 8020615 13764979463 68824897315