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38328056064 = 28338366809
BaseRepresentation
bin100011101100100001…
…111011100100000000
310122221010222222121000
4203230201323210000
51111443440243224
625335131132000
72524543046454
oct435441734400
9118833888530
1038328056064
11152892088a1
127517ba4000
1337ca87a21c
141bd850a664
15ee4d260c9
hex8ec87b900

38328056064 has 144 divisors (see below), whose sum is σ = 114710097600. Its totient is φ = 12621901824.

The previous prime is 38328056051. The next prime is 38328056069. The reversal of 38328056064 is 46065082383.

It is a happy number.

38328056064 is a `hidden beast` number, since 3 + 8 + 3 + 2 + 80 + 560 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (38328056069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 540292 + ... + 607100.

It is an arithmetic number, because the mean of its divisors is an integer number (796597900).

Almost surely, 238328056064 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 38328056064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57355048800).

38328056064 is an abundant number, since it is smaller than the sum of its proper divisors (76382041536).

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

38328056064 is an equidigital number, since it uses as much as digits as its factorization.

38328056064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66917 (or 66897 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 38328056064 in words is "thirty-eight billion, three hundred twenty-eight million, fifty-six thousand, sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 83 96 108 128 144 166 192 216 249 256 288 332 384 432 498 576 664 747 768 864 996 1152 1328 1494 1728 1992 2241 2304 2656 2988 3456 3984 4482 5312 5976 6912 7968 8964 10624 11952 15936 17928 21248 23904 31872 35856 47808 63744 66809 71712 95616 133618 143424 191232 200427 267236 286848 400854 534472 573696 601281 801708 1068944 1202562 1603416 1803843 2137888 2405124 3206832 3607686 4275776 4810248 5545147 6413664 7215372 8551552 9620496 11090294 12827328 14430744 16635441 17103104 19240992 22180588 25654656 28861488 33270882 38481984 44361176 49906323 51309312 57722976 66541764 76963968 88722352 99812646 115445952 133083528 149718969 153927936 177444704 199625292 230891904 266167056 299437938 354889408 399250584 461783808 532334112 598875876 709778816 798501168 1064668224 1197751752 1419557632 1597002336 2129336448 2395503504 3194004672 4258672896 4791007008 6388009344 9582014016 12776018688 19164028032 38328056064