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316316321389 = 4173161365521
BaseRepresentation
bin1001001101001011110…
…11000000011001101101
31010020110121222000220201
410212211323000121231
520140303434241024
6401151432313501
731565420240425
oct4464573003155
91106417860821
10316316321389
11112170354032
1251379842891
1323aa02a8853
141144a0d5485
158364d39744
hex49a5ec066d

316316321389 has 16 divisors (see below), whose sum is σ = 328678794864. Its totient is φ = 304180531200.

The previous prime is 316316321383. The next prime is 316316321459. The reversal of 316316321389 is 983123613613.

It can be written as a sum of positive squares in 8 ways, for example, as 6827716900 + 309488604489 = 82630^2 + 556317^2 .

It is a cyclic number.

It is not a de Polignac number, because 316316321389 - 23 = 316316321381 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 (316316321381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4794949 + ... + 4860469.

It is an arithmetic number, because the mean of its divisors is an integer number (20542424679).

Almost surely, 2316316321389 is an apocalyptic number.

It is an amenable number.

316316321389 is a deficient number, since it is larger than the sum of its proper divisors (12362473475).

316316321389 is a wasteful number, since it uses less digits than its factorization.

316316321389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67248.

The product of its digits is 419904, while the sum is 46.

The spelling of 316316321389 in words is "three hundred sixteen billion, three hundred sixteen million, three hundred twenty-one thousand, three hundred eighty-nine".

Divisors: 1 41 73 1613 2993 65521 66133 117749 2686361 4783033 4827709 105685373 196104353 4333100293 7715032229 316316321389