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85289425973 = 7379891071553
BaseRepresentation
bin100111101101110100…
…1010101110000110101
322011010222002202100122
41033123221111300311
52344133043112343
6103103104221325
76106360105403
oct1173351256065
9264128082318
1085289425973
1133197726104
121464330a845
138072c2b57b
1441b145a473
152342a46068
hex13dba55c35

85289425973 has 32 divisors (see below), whose sum is σ = 89420889600. Its totient is φ = 81303146496.

The previous prime is 85289425961. The next prime is 85289426041. The reversal of 85289425973 is 37952498258.

It is a cyclic number.

It is not a de Polignac number, because 85289425973 - 24 = 85289425957 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 (85289425913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54918365 + ... + 54919917.

It is an arithmetic number, because the mean of its divisors is an integer number (2794402800).

Almost surely, 285289425973 is an apocalyptic number.

It is an amenable number.

85289425973 is a deficient number, since it is larger than the sum of its proper divisors (4131463627).

85289425973 is a wasteful number, since it uses less digits than its factorization.

85289425973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901.

The product of its digits is 43545600, while the sum is 62.

The spelling of 85289425973 in words is "eighty-five billion, two hundred eighty-nine million, four hundred twenty-five thousand, nine hundred seventy-three".

Divisors: 1 73 79 89 107 1553 5767 6497 7031 7811 8453 9523 113369 122687 138217 166171 513263 617069 695179 752317 8956151 10089841 10919143 12130483 13127509 14789219 54919141 797097439 958308157 1079612987 1168348301 85289425973