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85648261654 = 21631393118859
BaseRepresentation
bin100111111000100001…
…0001100001000010110
322012001222022111101001
41033301002030020112
52400401423333104
6103202443253514
76121305132514
oct1176102141026
9265058274331
1085648261654
113336123571a
121472351a29a
1380cc389387
144206d874b4
1523642c7aa4
hex13f108c216

85648261654 has 16 divisors (see below), whose sum is σ = 129276699840. Its totient is φ = 42556094280.

The previous prime is 85648261651. The next prime is 85648261679. The reversal of 85648261654 is 45616284658.

It is a junction number, because it is equal to n+sod(n) for n = 85648261595 and 85648261604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85648261651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4532077 + ... + 4550935.

It is an arithmetic number, because the mean of its divisors is an integer number (8079793740).

Almost surely, 285648261654 is an apocalyptic number.

85648261654 is a deficient number, since it is larger than the sum of its proper divisors (43628438186).

85648261654 is a wasteful number, since it uses less digits than its factorization.

85648261654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32955.

The product of its digits is 11059200, while the sum is 55.

The spelling of 85648261654 in words is "eighty-five billion, six hundred forty-eight million, two hundred sixty-one thousand, six hundred fifty-four".

Divisors: 1 2 163 326 13931 18859 27862 37718 2270753 3074017 4541506 6148034 262724729 525449458 42824130827 85648261654