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38386171485 = 3351924119211
BaseRepresentation
bin100011101111111111…
…100111111001011101
310200002012100112222000
4203233333213321131
51112103324441420
625345004512513
72526150034254
oct435777477135
9120065315860
1038386171485
1115308aa1872
12753354b739
13380991744c
141c0211779b
15ee9ea5690
hex8effe7e5d

38386171485 has 96 divisors (see below), whose sum is σ = 73783301760. Its totient is φ = 18921081600.

The previous prime is 38386171463. The next prime is 38386171541. The reversal of 38386171485 is 58417168383.

It is a happy number.

38386171485 is a `hidden beast` number, since 3 + 8 + 3 + 8 + 617 + 14 + 8 + 5 = 666.

It is not a de Polignac number, because 38386171485 - 222 = 38381977181 is a prime.

It is a super-2 number, since 2×383861714852 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1988530 + ... + 2007740.

It is an arithmetic number, because the mean of its divisors is an integer number (768576060).

Almost surely, 238386171485 is an apocalyptic number.

It is an amenable number.

38386171485 is a deficient number, since it is larger than the sum of its proper divisors (35397130275).

38386171485 is a wasteful number, since it uses less digits than its factorization.

38386171485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19304 (or 19279 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 38386171485 in words is "thirty-eight billion, three hundred eighty-six million, one hundred seventy-one thousand, four hundred eighty-five".

Divisors: 1 3 5 9 15 19 27 41 45 57 95 123 135 171 205 285 361 369 513 615 779 855 1083 1107 1805 1845 2337 2565 3249 3895 5415 5535 7011 9747 11685 14801 16245 19211 21033 35055 44403 48735 57633 74005 96055 105165 133209 172899 222015 288165 365009 399627 518697 666045 787651 864495 1095027 1825045 1998135 2362953 2593485 3285081 3938255 5475135 6935171 7088859 9855243 11814765 14965369 16425405 20805513 21266577 34675855 35444295 44896107 49276215 62416539 74826845 104027565 106332885 134688321 187249617 224480535 284342011 312082695 404064963 673441605 853026033 936248085 1421710055 2020324815 2559078099 4265130165 7677234297 12795390495 38386171485