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386713906 = 21091773917
BaseRepresentation
bin10111000011001…
…100100100110010
3222221200002202021
4113003030210302
51242444321111
6102212342054
712404004535
oct2703144462
9887602667
10386713906
11189320977
12a961492a
136216c0c7
1439506a1c
1523e3bd71
hex170cc932

386713906 has 8 divisors (see below), whose sum is σ = 585392940. Its totient is φ = 191582928.

The previous prime is 386713891. The next prime is 386713913. The reversal of 386713906 is 609317683.

It can be written as a sum of positive squares in 2 ways, for example, as 386712225 + 1681 = 19665^2 + 41^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 886741 + ... + 887176.

Almost surely, 2386713906 is an apocalyptic number.

386713906 is a deficient number, since it is larger than the sum of its proper divisors (198679034).

386713906 is a wasteful number, since it uses less digits than its factorization.

386713906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774028.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 386713906 is about 19665.0427408638. The cubic root of 386713906 is about 728.5565434391.

The spelling of 386713906 in words is "three hundred eighty-six million, seven hundred thirteen thousand, nine hundred six".

Divisors: 1 2 109 218 1773917 3547834 193356953 386713906