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386670 = 23512889
BaseRepresentation
bin1011110011001101110
3201122102010
41132121232
544333140
612142050
73200214
oct1363156
9648363
10386670
11244569
12167926
13106ccb
14a0cb4
1579880
hex5e66e

386670 has 16 divisors (see below), whose sum is σ = 928080. Its totient is φ = 103104.

The previous prime is 386651. The next prime is 386677. The reversal of 386670 is 76683.

386670 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 12889 = 386670 / (3 + 8 + 6 + 6 + 7 + 0).

It is a Curzon number.

It is a plaindrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 386670.

It is not an unprimeable number, because it can be changed into a prime (386677) by changing a digit.

386670 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6415 + ... + 6474.

It is an arithmetic number, because the mean of its divisors is an integer number (58005).

2386670 is an apocalyptic number.

386670 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

386670 is an abundant number, since it is smaller than the sum of its proper divisors (541410).

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

386670 is a wasteful number, since it uses less digits than its factorization.

386670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12899.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 386670 is about 621.8279504815. The cubic root of 386670 is about 72.8528969899.

The spelling of 386670 in words is "three hundred eighty-six thousand, six hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 12889 25778 38667 64445 77334 128890 193335 386670