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386816874 = 2364469479
BaseRepresentation
bin10111000011100…
…101101101101010
3222221212022222220
4113003211231222
51243011114444
6102214454510
712404613663
oct2703455552
9887768886
10386816874
11189391274
12a9664436
13621a6c32
143953236a
1523e5c619
hex170e5b6a

386816874 has 8 divisors (see below), whose sum is σ = 773633760. Its totient is φ = 128938956.

The previous prime is 386816849. The next prime is 386816893. The reversal of 386816874 is 478618683.

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

386816874 is an admirable number.

It is a super-2 number, since 2×3868168742 = 299254588022263752, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32234734 + ... + 32234745.

It is an arithmetic number, because the mean of its divisors is an integer number (96704220).

Almost surely, 2386816874 is an apocalyptic number.

386816874 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

386816874 is a wasteful number, since it uses less digits than its factorization.

386816874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64469484.

The product of its digits is 1548288, while the sum is 51.

The square root of 386816874 is about 19667.6606133012. The cubic root of 386816874 is about 728.6212004994.

The spelling of 386816874 in words is "three hundred eighty-six million, eight hundred sixteen thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 64469479 128938958 193408437 386816874