Search a number
-
+
368784 = 243213197
BaseRepresentation
bin1011010000010010000
3200201212200
41122002100
543300114
611523200
73064113
oct1320220
9621780
10368784
11232089
12159500
13cbb20
149857a
1574409
hex5a090

368784 has 60 divisors (see below), whose sum is σ = 1117116. Its totient is φ = 112896.

The previous prime is 368783. The next prime is 368789. The reversal of 368784 is 487863.

It can be written as a sum of positive squares in 2 ways, for example, as 230400 + 138384 = 480^2 + 372^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (32256) is a multiple of the sum of its prime factors (224).

It is a nialpdrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 368784.

It is not an unprimeable number, because it can be changed into a prime (368783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1774 + ... + 1970.

368784 is a Friedman number, since it can be written as 7683*48, using all its digits and the basic arithmetic operations.

2368784 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 368784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558558).

368784 is an abundant number, since it is smaller than the sum of its proper divisors (748332).

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

368784 is a wasteful number, since it uses less digits than its factorization.

368784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 215 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 368784 is about 607.2758845862. The cubic root of 368784 is about 71.7118109894.

The spelling of 368784 in words is "three hundred sixty-eight thousand, seven hundred eighty-four".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 48 52 72 78 104 117 144 156 197 208 234 312 394 468 591 624 788 936 1182 1576 1773 1872 2364 2561 3152 3546 4728 5122 7092 7683 9456 10244 14184 15366 20488 23049 28368 30732 40976 46098 61464 92196 122928 184392 368784