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38408307936 = 2532319338999
BaseRepresentation
bin100011110001010100…
…000100010011100000
310200010202000012110120
4203301110010103200
51112130011323221
625351115200240
72526536142105
oct436124042340
9120122005416
1038408307936
111531a541259
12753aa46080
13381139813b
141c0503aaac
15eebdc95c6
hex8f15044e0

38408307936 has 96 divisors (see below), whose sum is σ = 105271488000. Its totient is φ = 12238431744.

The previous prime is 38408307907. The next prime is 38408307941. The reversal of 38408307936 is 63970380483.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4263565 + ... + 4272563.

It is an arithmetic number, because the mean of its divisors is an integer number (1096578000).

Almost surely, 238408307936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38408307936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52635744000).

38408307936 is an abundant number, since it is smaller than the sum of its proper divisors (66863180064).

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

38408307936 is a wasteful number, since it uses less digits than its factorization.

38408307936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10968 (or 10960 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 38408307936 in words is "thirty-eight billion, four hundred eight million, three hundred seven thousand, nine hundred thirty-six".

Divisors: 1 2 3 4 6 8 12 16 23 24 32 46 48 69 92 96 138 184 276 368 552 736 1104 1933 2208 3866 5799 7732 8999 11598 15464 17998 23196 26997 30928 35996 44459 46392 53994 61856 71992 88918 92784 107988 133377 143984 177836 185568 206977 215976 266754 287968 355672 413954 431952 533508 620931 711344 827908 863904 1067016 1241862 1422688 1655816 2134032 2483724 3311632 4268064 4967448 6623264 9934896 17395067 19869792 34790134 52185201 69580268 104370402 139160536 208740804 278321072 400086541 417481608 556642144 800173082 834963216 1200259623 1600346164 1669926432 2400519246 3200692328 4801038492 6401384656 9602076984 12802769312 19204153968 38408307936