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6442222173712 = 2413158811950269
BaseRepresentation
bin101110110111111001001…
…0111010011111000010000
3211210212111112120120122121
41131233302113103320100
51321022132334024322
621411303242544024
71233302161653433
oct135576227237020
924725445516577
106442222173712
112064149517896
12880667208014
13379664246980
14183b3b72d81a
15b289c4b4ec7
hex5dbf25d3e10

6442222173712 has 40 divisors (see below), whose sum is σ = 13442797652760. Its totient is φ = 2973144560640.

The previous prime is 6442222173701. The next prime is 6442222173733. The reversal of 6442222173712 is 2173712222446.

It can be written as a sum of positive squares in 4 ways, for example, as 2120413594896 + 4321808578816 = 1456164^2 + 2078896^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2328114 + ... + 4278382.

It is an arithmetic number, because the mean of its divisors is an integer number (336069941319).

Almost surely, 26442222173712 is an apocalyptic number.

It is an amenable number.

6442222173712 is an abundant number, since it is smaller than the sum of its proper divisors (7000575479048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6442222173712 is a wasteful number, since it uses less digits than its factorization.

6442222173712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966171 (or 1966165 counting only the distinct ones).

The product of its digits is 451584, while the sum is 43.

The spelling of 6442222173712 in words is "six trillion, four hundred forty-two billion, two hundred twenty-two million, one hundred seventy-three thousand, seven hundred twelve".

Divisors: 1 2 4 8 13 16 26 52 104 208 15881 31762 63524 127048 206453 254096 412906 825812 1651624 1950269 3303248 3900538 7801076 15602152 25353497 31204304 50706994 101413988 202827976 405655952 30972221989 61944443978 123888887956 247777775912 402638885857 495555551824 805277771714 1610555543428 3221111086856 6442222173712