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38678884621443 = 32112372274228813
BaseRepresentation
bin10001100101101101000010…
…01011011001110010000011
312001221122221222021012002200
420302312201023121302003
520032203323430341233
6214132500112444243
711101312550441523
oct1062664113316203
9161848858235080
1038678884621443
1111362694015500
124408288249683
1318775319bbcb1
1497a0d4865683
154711d71a8313
hex232da12d9c83

38678884621443 has 72 divisors (see below), whose sum is σ = 63347870533584. Its totient is φ = 22707705525120.

The previous prime is 38678884621441. The next prime is 38678884621453. The reversal of 38678884621443 is 34412648887683.

38678884621443 is a `hidden beast` number, since 3 + 8 + 6 + 7 + 88 + 84 + 6 + 21 + 443 = 666.

It is not a de Polignac number, because 38678884621443 - 21 = 38678884621441 is a prime.

It is a super-2 number, since 2×386788846214432 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38678884621441) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7032105 + ... + 11260917.

Almost surely, 238678884621443 is an apocalyptic number.

38678884621443 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

38678884621443 is a deficient number, since it is larger than the sum of its proper divisors (24668985912141).

38678884621443 is a wasteful number, since it uses less digits than its factorization.

38678884621443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229105 (or 4229091 counting only the distinct ones).

The product of its digits is 1189085184, while the sum is 72.

The spelling of 38678884621443 in words is "thirty-eight trillion, six hundred seventy-eight billion, eight hundred eighty-four million, six hundred twenty-one thousand, four hundred forty-three".

Divisors: 1 3 9 11 33 37 99 111 121 227 333 363 407 681 1089 1221 2043 2497 3663 4477 7491 8399 13431 22473 25197 27467 40293 75591 82401 92389 247203 277167 831501 1016279 3048837 4228813 9146511 12686439 38059317 46516943 139550829 156466081 418652487 469398243 511686373 959940551 1408194729 1535059119 1721126891 2879821653 4605177357 5163380673 8639464959 10559346061 15490142019 18932395801 31678038183 35517800387 56797187403 95034114549 106553401161 116152806671 170391562209 319660203483 348458420013 390695804257 1045375260039 1172087412771 3516262238313 4297653846827 12892961540481 38678884621443