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69380885805 = 3573111225919
BaseRepresentation
bin100000010011101101…
…1000100110100101101
320122002021101011212020
41000213123010310231
52114043001321210
651512333100353
75004215541000
oct1004733046455
9218067334766
1069380885805
1127473779450
12115436276b9
1367090b88aa
1435026d5537
151c110b9770
hex10276c4d2d

69380885805 has 64 divisors (see below), whose sum is σ = 141225984000. Its totient is φ = 28833591360.

The previous prime is 69380885797. The next prime is 69380885881. The reversal of 69380885805 is 50858808396.

It is not a de Polignac number, because 69380885805 - 23 = 69380885797 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 556365 + ... + 669554.

It is an arithmetic number, because the mean of its divisors is an integer number (2206656000).

Almost surely, 269380885805 is an apocalyptic number.

It is an amenable number.

69380885805 is an abundant number, since it is smaller than the sum of its proper divisors (71845098195).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69380885805 is a wasteful number, since it uses less digits than its factorization.

69380885805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225959 (or 1225945 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 60.

The spelling of 69380885805 in words is "sixty-nine billion, three hundred eighty million, eight hundred eighty-five thousand, eight hundred five".

Divisors: 1 3 5 7 11 15 21 33 35 49 55 77 105 147 165 231 245 343 385 539 735 1029 1155 1617 1715 2695 3773 5145 8085 11319 18865 56595 1225919 3677757 6129595 8581433 13485109 18388785 25744299 40455327 42907165 60070031 67425545 94395763 128721495 180210093 202276635 283187289 300350155 420490217 471978815 660770341 901050465 1261470651 1415936445 1982311023 2102451085 3303851705 4625392387 6307353255 9911555115 13876177161 23126961935 69380885805