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85454286865 = 5107795120089
BaseRepresentation
bin100111110010101111…
…0001111000000010001
322011120110022112222121
41033211132033000101
52400002244134430
6103131313534241
76113431311403
oct1174536170021
9264513275877
1085454286865
1133271798582
121468a574381
13809b1316ac
1441c92d2b73
15235225da7a
hex13e578f011

85454286865 has 16 divisors (see below), whose sum is σ = 103521680640. Its totient is φ = 67712630400.

The previous prime is 85454286857. The next prime is 85454286887. The reversal of 85454286865 is 56868245458.

It is not a de Polignac number, because 85454286865 - 23 = 85454286857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4243741 + ... + 4263829.

It is an arithmetic number, because the mean of its divisors is an integer number (6470105040).

Almost surely, 285454286865 is an apocalyptic number.

It is an amenable number.

85454286865 is a deficient number, since it is larger than the sum of its proper divisors (18067393775).

85454286865 is a wasteful number, since it uses less digits than its factorization.

85454286865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28152.

The product of its digits is 73728000, while the sum is 61.

The spelling of 85454286865 in words is "eighty-five billion, four hundred fifty-four million, two hundred eighty-six thousand, eight hundred sixty-five".

Divisors: 1 5 107 535 7951 20089 39755 100445 850757 2149523 4253785 10747615 159727639 798638195 17090857373 85454286865