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85384206481 = 773316640851
BaseRepresentation
bin100111110000101001…
…0111001100010010001
322011101120110002202211
41033201102321202101
52344331324101411
6103120331512121
76111620531410
oct1174122714221
9264346402684
1085384206481
1133236182102
121466abb8641
138089765402
1441bdc8d477
15234b019221
hex13e14b9891

85384206481 has 8 divisors (see below), whose sum is σ = 97715082944. Its totient is φ = 73086613200.

The previous prime is 85384206473. The next prime is 85384206487. The reversal of 85384206481 is 18460248358.

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

It is a cyclic number.

It is not a de Polignac number, because 85384206481 - 23 = 85384206473 is a prime.

It is a super-3 number, since 3×853842064813 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85384206487) by changing a digit.

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, 8315295 + ... + 8325556.

It is an arithmetic number, because the mean of its divisors is an integer number (12214385368).

Almost surely, 285384206481 is an apocalyptic number.

It is an amenable number.

85384206481 is a deficient number, since it is larger than the sum of its proper divisors (12330876463).

85384206481 is a wasteful number, since it uses less digits than its factorization.

85384206481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16641591.

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 85384206481 in words is "eighty-five billion, three hundred eighty-four million, two hundred six thousand, four hundred eighty-one".

Divisors: 1 7 733 5131 16640851 116485957 12197743783 85384206481