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42444808884 = 22321375985691
BaseRepresentation
bin100111100001111010…
…000110001010110100
311001120001101200210200
4213201322012022310
51143411332341014
631255431320500
73031551631332
oct474172061264
9131501350720
1042444808884
1117000a96155
128286820130
13400572983a
1420a9172b52
15118645ea09
hex9e1e862b4

42444808884 has 36 divisors (see below), whose sum is σ = 107300094720. Its totient is φ = 14147076240.

The previous prime is 42444808877. The next prime is 42444808907. The reversal of 42444808884 is 48880844424.

42444808884 is a `hidden beast` number, since 4 + 2 + 4 + 4 + 480 + 88 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 42444808884.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 452479 + ... + 538169.

Almost surely, 242444808884 is an apocalyptic number.

It is an amenable number.

42444808884 is an abundant number, since it is smaller than the sum of its proper divisors (64855285836).

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

42444808884 is a wasteful number, since it uses less digits than its factorization.

42444808884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99460 (or 99455 counting only the distinct ones).

The product of its (nonzero) digits is 8388608, while the sum is 54.

The spelling of 42444808884 in words is "forty-two billion, four hundred forty-four million, eight hundred eight thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 18 36 13759 27518 41277 55036 82554 85691 123831 165108 171382 247662 257073 342764 495324 514146 771219 1028292 1542438 3084876 1179022469 2358044938 3537067407 4716089876 7074134814 10611202221 14148269628 21222404442 42444808884