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386006693 = 927741609
BaseRepresentation
bin10111000000011…
…111111010100101
3222220100011122012
4113000133322211
51242304203233
6102145244005
712365000642
oct2700377245
9886304565
10386006693
111889885a6
12a9333605
1361c82237
14393a0dc9
1523d4c548
hex1701fea5

386006693 has 4 divisors (see below), whose sum is σ = 386057580. Its totient is φ = 385955808.

The previous prime is 386006671. The next prime is 386006711. The reversal of 386006693 is 396600683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 396600683 = 1572526119.

It can be written as a sum of positive squares in 2 ways, for example, as 348270244 + 37736449 = 18662^2 + 6143^2 .

It is a cyclic number.

It is not a de Polignac number, because 386006693 - 212 = 386002597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 386006693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386006393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11528 + ... + 30081.

It is an arithmetic number, because the mean of its divisors is an integer number (96514395).

Almost surely, 2386006693 is an apocalyptic number.

It is an amenable number.

386006693 is a deficient number, since it is larger than the sum of its proper divisors (50887).

386006693 is an equidigital number, since it uses as much as digits as its factorization.

386006693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50886.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 386006693 is about 19647.0530360154. The cubic root of 386006693 is about 728.1121502592.

The spelling of 386006693 in words is "three hundred eighty-six million, six thousand, six hundred ninety-three".

Divisors: 1 9277 41609 386006693