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16830322405 = 5131729525209
BaseRepresentation
bin11111010110010101…
…00101011011100101
31121102221012222000021
433223022211123211
5233432030304110
611422020115141
71134033244231
oct175312453345
947387188007
1016830322405
117157307366
123318535ab1
131782ac4a70
14b593515c1
1568785c2da
hex3eb2a56e5

16830322405 has 32 divisors (see below), whose sum is σ = 23823525600. Its totient is φ = 11294072832.

The previous prime is 16830322403. The next prime is 16830322433. The reversal of 16830322405 is 50422303861.

It can be written as a sum of positive squares in 16 ways, for example, as 8114046084 + 8716276321 = 90078^2 + 93361^2 .

It is a cyclic number.

It is not a de Polignac number, because 16830322405 - 21 = 16830322403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16830322403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230560 + ... + 294649.

It is an arithmetic number, because the mean of its divisors is an integer number (744485175).

Almost surely, 216830322405 is an apocalyptic number.

It is an amenable number.

16830322405 is a deficient number, since it is larger than the sum of its proper divisors (6993203195).

16830322405 is a wasteful number, since it uses less digits than its factorization.

16830322405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525273.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 16830322405 in words is "sixteen billion, eight hundred thirty million, three hundred twenty-two thousand, four hundred five".

Divisors: 1 5 13 17 29 65 85 145 221 377 493 1105 1885 2465 6409 32045 525209 2626045 6827717 8928553 15231061 34138585 44642765 76155305 116071189 198003793 258928037 580355945 990018965 1294640185 3366064481 16830322405