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164730925871 = 1734743963611
BaseRepresentation
bin1001100101101010111…
…0100111001100101111
3120202012101022002020122
42121122232213030233
510144332104111441
6203402031235155
714621120524001
oct2313256471457
9522171262218
10164730925871
1163953349856
1227b14078abb
13126c3437c45
147d89d72371
154441e9334b
hex265aba732f

164730925871 has 16 divisors (see below), whose sum is σ = 175324849920. Its totient is φ = 154239492480.

The previous prime is 164730925867. The next prime is 164730925913. The reversal of 164730925871 is 178529037461.

It is a cyclic number.

It is not a de Polignac number, because 164730925871 - 22 = 164730925867 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 (164730925811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2557856 + ... + 2621466.

It is an arithmetic number, because the mean of its divisors is an integer number (10957803120).

It is a 1-persistent number, because it is pandigital, but 2⋅164730925871 = 329461851742 is not.

Almost surely, 2164730925871 is an apocalyptic number.

164730925871 is a deficient number, since it is larger than the sum of its proper divisors (10593924049).

164730925871 is a wasteful number, since it uses less digits than its factorization.

164730925871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64414.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 164730925871 in words is "one hundred sixty-four billion, seven hundred thirty million, nine hundred twenty-five thousand, eight hundred seventy-one".

Divisors: 1 17 347 439 5899 7463 63611 152333 1081387 2589661 22073017 27925229 375241289 474728893 9690054463 164730925871