Search a number
-
+
389700 = 223252433
BaseRepresentation
bin1011111001001000100
3201210120100
41133021010
544432300
612204100
73212103
oct1371104
9653510
10389700
11246873
12169630
131084bc
14a203a
157a700
hex5f244

389700 has 54 divisors (see below), whose sum is σ = 1224314. Its totient is φ = 103680.

The previous prime is 389699. The next prime is 389713. The reversal of 389700 is 7983.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 324 + 389376 = 18^2 + 624^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 684 + ... + 1116.

2389700 is an apocalyptic number.

389700 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (612157).

389700 is an abundant number, since it is smaller than the sum of its proper divisors (834614).

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

389700 is a wasteful number, since it uses less digits than its factorization.

389700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 389700 is about 624.2595614005. The cubic root of 389700 is about 73.0426972336.

It can be divided in two parts, 389 and 700, that added together give a square (1089 = 332).

The spelling of 389700 in words is "three hundred eighty-nine thousand, seven hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 45 50 60 75 90 100 150 180 225 300 433 450 866 900 1299 1732 2165 2598 3897 4330 5196 6495 7794 8660 10825 12990 15588 19485 21650 25980 32475 38970 43300 64950 77940 97425 129900 194850 389700