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38685395 = 571736389
BaseRepresentation
bin1001001110010…
…0101011010011
32200210102101102
42103210223103
534400413040
63501055015
7646551260
oct223445323
980712342
1038685395
111a922a01
1210b5746b
138026388
1451d0267
1535e2515
hex24e4ad3

38685395 has 16 divisors (see below), whose sum is σ = 53369280. Its totient is φ = 26369664.

The previous prime is 38685359. The next prime is 38685397. The reversal of 38685395 is 59358683.

It is a happy number.

38685395 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 38685395 - 212 = 38681299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38685397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2861 + ... + 9249.

It is an arithmetic number, because the mean of its divisors is an integer number (3335580).

Almost surely, 238685395 is an apocalyptic number.

38685395 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38685395 is a deficient number, since it is larger than the sum of its proper divisors (14683885).

38685395 is a wasteful number, since it uses less digits than its factorization.

38685395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6574.

The product of its digits is 777600, while the sum is 47.

The square root of 38685395 is about 6219.7584358237. The cubic root of 38685395 is about 338.2068077184.

The spelling of 38685395 in words is "thirty-eight million, six hundred eighty-five thousand, three hundred ninety-five".

Divisors: 1 5 7 35 173 865 1211 6055 6389 31945 44723 223615 1105297 5526485 7737079 38685395