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445073166 = 232191129457
BaseRepresentation
bin11010100001110…
…100011100001110
31011000111001121100
4122201310130032
51402414320131
6112055243530
714013026256
oct3241643416
91130431540
10445073166
1120926106a
121050795a6
1371293305
1443178966
15291187e6
hex1a87470e

445073166 has 24 divisors (see below), whose sum is σ = 969381504. Its totient is φ = 147579840.

The previous prime is 445073159. The next prime is 445073219. The reversal of 445073166 is 661370544.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 445073166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61291 + ... + 68166.

It is an arithmetic number, because the mean of its divisors is an integer number (40390896).

Almost surely, 2445073166 is an apocalyptic number.

445073166 is an abundant number, since it is smaller than the sum of its proper divisors (524308338).

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

445073166 is a wasteful number, since it uses less digits than its factorization.

445073166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129656 (or 129653 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 445073166 is about 21096.7572389692. The cubic root of 445073166 is about 763.5025120761.

The spelling of 445073166 in words is "four hundred forty-five million, seventy-three thousand, one hundred sixty-six".

Divisors: 1 2 3 6 9 18 191 382 573 1146 1719 3438 129457 258914 388371 776742 1165113 2330226 24726287 49452574 74178861 148357722 222536583 445073166