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16968952845 = 3451322983103
BaseRepresentation
bin11111100110110110…
…11010110000001101
31121210121002010020000
433303123122300031
5234223022442340
611443451314513
71140335501505
oct176333326015
947717063200
1016968952845
117218593479
123356a4ba39
1317a5742900
14b6d91aa05
15694ae2d30
hex3f36dac0d

16968952845 has 240 divisors, whose sum is σ = 34819424640. Its totient is φ = 7891333632.

The previous prime is 16968952843. The next prime is 16968952853. The reversal of 16968952845 is 54825986961.

16968952845 is a `hidden beast` number, since 1 + 6 + 9 + 68 + 9 + 528 + 45 = 666.

It is not a de Polignac number, because 16968952845 - 21 = 16968952843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16968952841) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 164747064 + ... + 164747166.

It is an arithmetic number, because the mean of its divisors is an integer number (145080936).

Almost surely, 216968952845 is an apocalyptic number.

16968952845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16968952845 is an abundant number, since it is smaller than the sum of its proper divisors (17850471795).

16968952845 is a wasteful number, since it uses less digits than its factorization.

16968952845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 236 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 63.

The spelling of 16968952845 in words is "sixteen billion, nine hundred sixty-eight million, nine hundred fifty-two thousand, eight hundred forty-five".