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8001444 = 2231160617
BaseRepresentation
bin11110100001011110100100
3120001111220210
4132201132210
54022021234
6443255420
7125003553
oct36413644
916044823
108001444
114575670
12281a570
131871ca9
1410c3d9a
15a80be9
hex7a17a4

8001444 has 24 divisors (see below), whose sum is σ = 20367648. Its totient is φ = 2424640.

The previous prime is 8001359. The next prime is 8001491. The reversal of 8001444 is 4441008.

It is a self number, because there is not a number n which added to its sum of digits gives 8001444.

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, 30177 + ... + 30440.

It is an arithmetic number, because the mean of its divisors is an integer number (848652).

Almost surely, 28001444 is an apocalyptic number.

It is an amenable number.

8001444 is an abundant number, since it is smaller than the sum of its proper divisors (12366204).

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

8001444 is a wasteful number, since it uses less digits than its factorization.

8001444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60635 (or 60633 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 8001444 is about 2828.6823787764. The cubic root of 8001444 is about 200.0120326094.

The spelling of 8001444 in words is "eight million, one thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 60617 121234 181851 242468 363702 666787 727404 1333574 2000361 2667148 4000722 8001444