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385836 = 223113779
BaseRepresentation
bin1011110001100101100
3201121021020
41132030230
544321321
612134140
73164613
oct1361454
9647236
10385836
11243980
12167350
13106809
14a087a
15794c6
hex5e32c

385836 has 48 divisors (see below), whose sum is σ = 1021440. Its totient is φ = 112320.

The previous prime is 385831. The next prime is 385837. The reversal of 385836 is 638583.

385836 is nontrivially palindromic in base 7.

385836 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 385797 and 385806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4845 + ... + 4923.

It is an arithmetic number, because the mean of its divisors is an integer number (21280).

2385836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510720).

385836 is an abundant number, since it is smaller than the sum of its proper divisors (635604).

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

385836 is a wasteful number, since it uses less digits than its factorization.

385836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 132 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 385836 is about 621.1569849885. The cubic root of 385836 is about 72.8004810176.

It can be divided in two parts, 385 and 836, that added together give a palindrome (1221).

The spelling of 385836 in words is "three hundred eighty-five thousand, eight hundred thirty-six".

Divisors: 1 2 3 4 6 11 12 22 33 37 44 66 74 79 111 132 148 158 222 237 316 407 444 474 814 869 948 1221 1628 1738 2442 2607 2923 3476 4884 5214 5846 8769 10428 11692 17538 32153 35076 64306 96459 128612 192918 385836