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85305490048 = 271787372943
BaseRepresentation
bin100111101110010011…
…0100111101010000000
322011012002022220010101
41033130212213222000
52344201201140143
6103104440412144
76106643462422
oct1173446475200
9264162286111
1085305490048
11331a57a82a9
1214648777054
13807636433c
1441b363c812
15234416ab4d
hex13dc9a7a80

85305490048 has 32 divisors (see below), whose sum is σ = 170040087360. Its totient is φ = 42628762368.

The previous prime is 85305490043. The next prime is 85305490063. The reversal of 85305490048 is 84009450358.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (85305490043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42265 + ... + 415207.

It is an arithmetic number, because the mean of its divisors is an integer number (5313752730).

Almost surely, 285305490048 is an apocalyptic number.

It is an amenable number.

85305490048 is a deficient number, since it is larger than the sum of its proper divisors (84734597312).

85305490048 is a wasteful number, since it uses less digits than its factorization.

85305490048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374744 (or 374732 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 85305490048 in words is "eighty-five billion, three hundred five million, four hundred ninety thousand, forty-eight".

Divisors: 1 2 4 8 16 32 64 128 1787 3574 7148 14296 28592 57184 114368 228736 372943 745886 1491772 2983544 5967088 11934176 23868352 47736704 666449141 1332898282 2665796564 5331593128 10663186256 21326372512 42652745024 85305490048