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38705488 = 242983417
BaseRepresentation
bin1001001110100…
…1100101010000
32200211102221121
42103221211100
534402033423
63501332024
7646663663
oct223514520
980742847
1038705488
111a937008
1210b67014
138032573
1451d76da
1535e845d
hex24e9950

38705488 has 20 divisors (see below), whose sum is σ = 77578740. Its totient is φ = 18685184.

The previous prime is 38705483. The next prime is 38705501. The reversal of 38705488 is 88450783.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10061584 + 28643904 = 3172^2 + 5352^2 .

It is a super-2 number, since 2×387054882 = 2996229602636288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38705483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41245 + ... + 42172.

It is an arithmetic number, because the mean of its divisors is an integer number (3878937).

Almost surely, 238705488 is an apocalyptic number.

It is an amenable number.

38705488 is an abundant number, since it is smaller than the sum of its proper divisors (38873252).

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

38705488 is a wasteful number, since it uses less digits than its factorization.

38705488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83454 (or 83448 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 38705488 is about 6221.3734817964. The cubic root of 38705488 is about 338.2653518899.

It can be divided in two parts, 38705 and 488, that added together give a palindrome (39193).

The spelling of 38705488 in words is "thirty-eight million, seven hundred five thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 16 29 58 116 232 464 83417 166834 333668 667336 1334672 2419093 4838186 9676372 19352744 38705488