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17969610445 = 526313665103
BaseRepresentation
bin10000101111000100…
…100111111011001101
31201101022222210101121
4100233010213323031
5243300210013240
612131035040541
71204206111553
oct205704477315
951338883347
1017969610445
117691416326
123595ba0151
131904b501b7
14c26799bd3
157028a404a
hex42f127ecd

17969610445 has 8 divisors (see below), whose sum is σ = 21645524736. Its totient is φ = 14321026896.

The previous prime is 17969610389. The next prime is 17969610497. The reversal of 17969610445 is 54401696971.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-17969610445 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17969610392 and 17969610401.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6831237 + ... + 6833866.

It is an arithmetic number, because the mean of its divisors is an integer number (2705690592).

Almost surely, 217969610445 is an apocalyptic number.

It is an amenable number.

17969610445 is a deficient number, since it is larger than the sum of its proper divisors (3675914291).

17969610445 is a wasteful number, since it uses less digits than its factorization.

17969610445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13665371.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 17969610445 in words is "seventeen billion, nine hundred sixty-nine million, six hundred ten thousand, four hundred forty-five".

Divisors: 1 5 263 1315 13665103 68325515 3593922089 17969610445