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38888888888889 = 34131916981114467
BaseRepresentation
bin10001101011110100001100…
…11010000110111000111001
312002200202000112100022120000
420311322012122012320321
520044123421023421024
6214413150421023213
711122425630323154
oct1065720632067071
9162622015308500
1038888888888889
1111433759a45926
124440b16254b09
13189128b860b40
1498633749ac9b
154768c8a7ecc9
hex235e86686e39

38888888888889 has 80 divisors (see below), whose sum is σ = 65859182114880. Its totient is φ = 22670531579520.

The previous prime is 38888888888873. The next prime is 38888888888917. The reversal of 38888888888889 is 98888888888883.

38888888888889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38888888888889 - 24 = 38888888888873 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (38888888889889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 339681634 + ... + 339796100.

It is an arithmetic number, because the mean of its divisors is an integer number (823239776436).

Almost surely, 238888888888889 is an apocalyptic number.

38888888888889 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

38888888888889 is a deficient number, since it is larger than the sum of its proper divisors (26970293225991).

38888888888889 is a wasteful number, since it uses less digits than its factorization.

38888888888889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131492 (or 131483 counting only the distinct ones).

The product of its digits is 1855425871872, while the sum is 108.

The spelling of 38888888888889 in words is "thirty-eight trillion, eight hundred eighty-eight billion, eight hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-nine".

Divisors: 1 3 9 13 19 27 39 57 81 117 171 247 351 513 741 1053 1539 2223 6669 16981 20007 50943 114467 152829 220753 322639 343401 458487 662259 967917 1030203 1375461 1488071 1986777 2174873 2903751 3090609 4194307 4464213 5960331 6524619 8711253 9271827 12582921 13392639 17880993 19573857 26133759 28273349 37748763 40177917 58721571 84820047 113246289 120533751 176164713 254460141 339738867 763380423 1943764127 2290141269 5831292381 17493877143 25268933651 36931518413 52481631429 75806800953 110794555239 157444894287 227420402859 332383665717 480109739369 682261208577 997150997151 1440329218107 2046783625731 2991452991453 4320987654321 12962962962963 38888888888889