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10444031388 = 2232753781973
BaseRepresentation
bin10011011101000001…
…10100010110011100
3222221212021202200100
421232200310112130
5132342133001023
64444203501100
7516545542050
oct115640642634
928855252610
1010444031388
11447a4243aa
122035827790
13ca59a753b
14711109c60
15411d6cc43
hex26e83459c

10444031388 has 72 divisors (see below), whose sum is σ = 30740961888. Its totient is φ = 2927703168.

The previous prime is 10444031371. The next prime is 10444031399. The reversal of 10444031388 is 88313044401.

10444031388 is a `hidden beast` number, since 104 + 440 + 31 + 3 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 377631 + ... + 404342.

It is an arithmetic number, because the mean of its divisors is an integer number (426957804).

Almost surely, 210444031388 is an apocalyptic number.

10444031388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

10444031388 is an abundant number, since it is smaller than the sum of its proper divisors (20296930500).

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

10444031388 is a wasteful number, since it uses less digits than its factorization.

10444031388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782043 (or 782038 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

Adding to 10444031388 its reverse (88313044401), we get a palindrome (98757075789).

The spelling of 10444031388 in words is "ten billion, four hundred forty-four million, thirty-one thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 53 63 84 106 126 159 212 252 318 371 477 636 742 954 1113 1484 1908 2226 3339 4452 6678 13356 781973 1563946 2345919 3127892 4691838 5473811 7037757 9383676 10947622 14075514 16421433 21895244 28151028 32842866 41444569 49264299 65685732 82889138 98528598 124333707 165778276 197057196 248667414 290111983 373001121 497334828 580223966 746002242 870335949 1160447932 1492004484 1740671898 2611007847 3481343796 5222015694 10444031388