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87041669605 = 5111582575811
BaseRepresentation
bin101000100010000010…
…1100111100111100101
322022200002020221201221
41101010011213213211
52411230131411410
6103553021020341
76200654661412
oct1210405474745
9268602227657
1087041669605
1133a06831740
1214a520b46b1
138291c6a517
1442da061109
1523e67b94da
hex14441679e5

87041669605 has 8 divisors (see below), whose sum is σ = 113945458464. Its totient is φ = 63303032400.

The previous prime is 87041669537. The next prime is 87041669629. The reversal of 87041669605 is 50696614078.

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

It is not a de Polignac number, because 87041669605 - 221 = 87039572453 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 791287851 + ... + 791287960.

It is an arithmetic number, because the mean of its divisors is an integer number (14243182308).

Almost surely, 287041669605 is an apocalyptic number.

It is an amenable number.

87041669605 is a deficient number, since it is larger than the sum of its proper divisors (26903788859).

87041669605 is a wasteful number, since it uses less digits than its factorization.

87041669605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582575827.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 87041669605 in words is "eighty-seven billion, forty-one million, six hundred sixty-nine thousand, six hundred five".

Divisors: 1 5 11 55 1582575811 7912879055 17408333921 87041669605