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38005740 = 2233570381
BaseRepresentation
bin1001000011111…
…0101111101100
32122111220002000
42100332233230
534212140430
63434332300
7641020623
oct220765754
978456060
1038005740
111a4a9303
121088a090
137b48c06
1450946ba
15350ae60
hex243ebec

38005740 has 48 divisors (see below), whose sum is σ = 118241760. Its totient is φ = 10134720.

The previous prime is 38005739. The next prime is 38005763. The reversal of 38005740 is 4750083.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34651 + ... + 35730.

It is an arithmetic number, because the mean of its divisors is an integer number (2463370).

Almost surely, 238005740 is an apocalyptic number.

38005740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38005740 is an abundant number, since it is smaller than the sum of its proper divisors (80236020).

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

38005740 is a wasteful number, since it uses less digits than its factorization.

38005740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70399 (or 70391 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 38005740 is about 6164.8795608673. The cubic root of 38005740 is about 336.2144676687.

The spelling of 38005740 in words is "thirty-eight million, five thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 70381 140762 211143 281524 351905 422286 633429 703810 844572 1055715 1266858 1407620 1900287 2111430 2533716 3167145 3800574 4222860 6334290 7601148 9501435 12668580 19002870 38005740